diff --git a/docs/package-lock.json b/docs/package-lock.json
index 26e1c68..c093515 100644
--- a/docs/package-lock.json
+++ b/docs/package-lock.json
@@ -1288,6 +1288,7 @@
       "resolved": "https://registry.npmjs.org/bl/-/bl-1.2.1.tgz",
       "integrity": "sha1-ysMo977kVzDUBLaSID/LWQ4XLV4=",
       "dev": true,
+      "optional": true,
       "requires": {
         "readable-stream": "2.3.3"
       }
@@ -1578,7 +1579,8 @@
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/chownr/-/chownr-1.0.1.tgz",
       "integrity": "sha1-4qdQQqlVGQi+vSW4Uj1fl2nXkYE=",
-      "dev": true
+      "dev": true,
+      "optional": true
     },
     "cipher-base": {
       "version": "1.0.4",
@@ -1609,6 +1611,18 @@
         "chalk": "1.1.3"
       }
     },
+    "clipboard": {
+      "version": "2.0.6",
+      "resolved": "https://registry.npmjs.org/clipboard/-/clipboard-2.0.6.tgz",
+      "integrity": "sha512-g5zbiixBRk/wyKakSwCKd7vQXDjFnAMGHoEyBogG/bw9kTD9GvdAvaoRR1ALcEzt3pVKxZR0pViekPMIS0QyGg==",
+      "dev": true,
+      "optional": true,
+      "requires": {
+        "good-listener": "^1.2.2",
+        "select": "^1.1.2",
+        "tiny-emitter": "^2.0.0"
+      }
+    },
     "cliui": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/cliui/-/cliui-2.1.0.tgz",
@@ -2156,6 +2170,13 @@
       "integrity": "sha1-3zrhmayt+31ECqrgsp4icrJOxhk=",
       "dev": true
     },
+    "delegate": {
+      "version": "3.2.0",
+      "resolved": "https://registry.npmjs.org/delegate/-/delegate-3.2.0.tgz",
+      "integrity": "sha512-IofjkYBZaZivn0V8nnsMJGBr4jVLxHDheKSW88PyxS5QC4Vo9ZbZVvhzlSxY87fVq3STR6r+4cGepyHkcWOQSw==",
+      "dev": true,
+      "optional": true
+    },
     "delegates": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/delegates/-/delegates-1.0.0.tgz",
@@ -2270,6 +2291,7 @@
       "resolved": "https://registry.npmjs.org/end-of-stream/-/end-of-stream-1.4.0.tgz",
       "integrity": "sha1-epDYM+/abPpurA9JSduw+tOmMgY=",
       "dev": true,
+      "optional": true,
       "requires": {
         "once": "1.4.0"
       }
@@ -2467,6 +2489,7 @@
       "resolved": "https://registry.npmjs.org/expand-tilde/-/expand-tilde-1.2.2.tgz",
       "integrity": "sha1-C4HrqJflo9MdHD0QL48BRB5VlEk=",
       "dev": true,
+      "optional": true,
       "requires": {
         "os-homedir": "1.0.2"
       }
@@ -2731,7 +2754,8 @@
         "ansi-regex": {
           "version": "2.1.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "aproba": {
           "version": "1.1.1",
@@ -2782,7 +2806,8 @@
         "balanced-match": {
           "version": "0.4.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "bcrypt-pbkdf": {
           "version": "1.0.1",
@@ -2797,6 +2822,7 @@
           "version": "0.0.9",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "inherits": "2.0.3"
           }
@@ -2805,6 +2831,7 @@
           "version": "2.10.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "hoek": "2.16.3"
           }
@@ -2813,6 +2840,7 @@
           "version": "1.1.7",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "balanced-match": "0.4.2",
             "concat-map": "0.0.1"
@@ -2821,7 +2849,8 @@
         "buffer-shims": {
           "version": "1.0.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "caseless": {
           "version": "0.12.0",
@@ -2838,12 +2867,14 @@
         "code-point-at": {
           "version": "1.1.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "combined-stream": {
           "version": "1.0.5",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "delayed-stream": "1.0.0"
           }
@@ -2851,22 +2882,26 @@
         "concat-map": {
           "version": "0.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "console-control-strings": {
           "version": "1.1.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "core-util-is": {
           "version": "1.0.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "cryptiles": {
           "version": "2.0.5",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "boom": "2.10.1"
           }
@@ -2906,7 +2941,8 @@
         "delayed-stream": {
           "version": "1.0.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "delegates": {
           "version": "1.0.0",
@@ -2938,7 +2974,8 @@
         "extsprintf": {
           "version": "1.0.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "forever-agent": {
           "version": "0.6.1",
@@ -2960,12 +2997,14 @@
         "fs.realpath": {
           "version": "1.0.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "fstream": {
           "version": "1.0.11",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "graceful-fs": "4.1.11",
             "inherits": "2.0.3",
@@ -3021,6 +3060,7 @@
           "version": "7.1.2",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "fs.realpath": "1.0.0",
             "inflight": "1.0.6",
@@ -3033,7 +3073,8 @@
         "graceful-fs": {
           "version": "4.1.11",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "har-schema": {
           "version": "1.0.5",
@@ -3061,6 +3102,7 @@
           "version": "3.1.3",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "boom": "2.10.1",
             "cryptiles": "2.0.5",
@@ -3071,7 +3113,8 @@
         "hoek": {
           "version": "2.16.3",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "http-signature": {
           "version": "1.1.1",
@@ -3088,6 +3131,7 @@
           "version": "1.0.6",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "once": "1.4.0",
             "wrappy": "1.0.2"
@@ -3096,7 +3140,8 @@
         "inherits": {
           "version": "2.0.3",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "ini": {
           "version": "1.3.4",
@@ -3108,6 +3153,7 @@
           "version": "1.0.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "number-is-nan": "1.0.1"
           }
@@ -3121,7 +3167,8 @@
         "isarray": {
           "version": "1.0.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "isstream": {
           "version": "0.1.2",
@@ -3194,12 +3241,14 @@
         "mime-db": {
           "version": "1.27.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "mime-types": {
           "version": "2.1.15",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "mime-db": "1.27.0"
           }
@@ -3208,6 +3257,7 @@
           "version": "3.0.4",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "brace-expansion": "1.1.7"
           }
@@ -3215,12 +3265,14 @@
         "minimist": {
           "version": "0.0.8",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "mkdirp": {
           "version": "0.5.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "minimist": "0.0.8"
           }
@@ -3275,7 +3327,8 @@
         "number-is-nan": {
           "version": "1.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "oauth-sign": {
           "version": "0.8.2",
@@ -3293,6 +3346,7 @@
           "version": "1.4.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "wrappy": "1.0.2"
           }
@@ -3322,7 +3376,8 @@
         "path-is-absolute": {
           "version": "1.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "performance-now": {
           "version": "0.2.0",
@@ -3333,7 +3388,8 @@
         "process-nextick-args": {
           "version": "1.0.7",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "punycode": {
           "version": "1.4.1",
@@ -3371,6 +3427,7 @@
           "version": "2.2.9",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "buffer-shims": "1.0.0",
             "core-util-is": "1.0.2",
@@ -3415,6 +3472,7 @@
           "version": "2.6.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "glob": "7.1.2"
           }
@@ -3422,7 +3480,8 @@
         "safe-buffer": {
           "version": "5.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "semver": {
           "version": "5.3.0",
@@ -3446,6 +3505,7 @@
           "version": "1.0.9",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "hoek": "2.16.3"
           }
@@ -3479,6 +3539,7 @@
           "version": "1.0.2",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "code-point-at": "1.1.0",
             "is-fullwidth-code-point": "1.0.0",
@@ -3489,6 +3550,7 @@
           "version": "1.0.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "safe-buffer": "5.0.1"
           }
@@ -3503,6 +3565,7 @@
           "version": "3.0.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "ansi-regex": "2.1.1"
           }
@@ -3517,6 +3580,7 @@
           "version": "2.2.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "block-stream": "0.0.9",
             "fstream": "1.0.11",
@@ -3572,7 +3636,8 @@
         "util-deprecate": {
           "version": "1.0.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "uuid": {
           "version": "3.0.1",
@@ -3601,7 +3666,8 @@
         "wrappy": {
           "version": "1.0.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         }
       }
     },
@@ -3854,6 +3920,16 @@
         "minimatch": "3.0.4"
       }
     },
+    "good-listener": {
+      "version": "1.2.2",
+      "resolved": "https://registry.npmjs.org/good-listener/-/good-listener-1.2.2.tgz",
+      "integrity": "sha1-1TswzfkxPf+33JoNR3CWqm0UXFA=",
+      "dev": true,
+      "optional": true,
+      "requires": {
+        "delegate": "^3.1.2"
+      }
+    },
     "graceful-fs": {
       "version": "4.1.11",
       "resolved": "https://registry.npmjs.org/graceful-fs/-/graceful-fs-4.1.11.tgz",
@@ -3864,7 +3940,8 @@
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/graceful-readlink/-/graceful-readlink-1.0.1.tgz",
       "integrity": "sha1-TK+tdrxi8C+gObL5Tpo906ORpyU=",
-      "dev": true
+      "dev": true,
+      "optional": true
     },
     "gray-percentage": {
       "version": "1.1.2",
@@ -4373,6 +4450,7 @@
       "resolved": "https://registry.npmjs.org/homedir-polyfill/-/homedir-polyfill-1.0.1.tgz",
       "integrity": "sha1-TCu8inWJmP7r9e1oWA921GdotLw=",
       "dev": true,
+      "optional": true,
       "requires": {
         "parse-passwd": "1.0.0"
       }
@@ -5977,7 +6055,8 @@
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/parse-passwd/-/parse-passwd-1.0.0.tgz",
       "integrity": "sha1-bVuTSkVpk7I9N/QKOC1vFmao5cY=",
-      "dev": true
+      "dev": true,
+      "optional": true
     },
     "parse-unit": {
       "version": "1.0.1",
@@ -7227,10 +7306,13 @@
       "dev": true
     },
     "prismjs": {
-      "version": "1.5.1",
-      "resolved": "https://registry.npmjs.org/prismjs/-/prismjs-1.5.1.tgz",
-      "integrity": "sha1-IkmQEA/2wqdYjQhr4aWsYug2kPc=",
-      "dev": true
+      "version": "1.21.0",
+      "resolved": "https://registry.npmjs.org/prismjs/-/prismjs-1.21.0.tgz",
+      "integrity": "sha512-uGdSIu1nk3kej2iZsLyDoJ7e9bnPzIgY0naW/HdknGj61zScaprVEVGHrPoXqI+M9sP0NDnTK2jpkvmldpuqDw==",
+      "dev": true,
+      "requires": {
+        "clipboard": "^2.0.0"
+      }
     },
     "private": {
       "version": "0.1.8",
@@ -7338,6 +7420,7 @@
       "resolved": "https://registry.npmjs.org/pump/-/pump-1.0.3.tgz",
       "integrity": "sha512-8k0JupWme55+9tCVE+FS5ULT3K6AbgqrGa58lTT49RpyfwwcGedHqaC5LlQNdEAumn/wFsu6aPwkuPMioy8kqw==",
       "dev": true,
+      "optional": true,
       "requires": {
         "end-of-stream": "1.4.0",
         "once": "1.4.0"
@@ -7909,7 +7992,8 @@
       "version": "3.6.2",
       "resolved": "https://registry.npmjs.org/rsvp/-/rsvp-3.6.2.tgz",
       "integrity": "sha512-OfWGQTb9vnwRjwtA2QwpG2ICclHC3pgXZO5xt8H2EfgDquO0qVdSb5T88L4qJVAEugbS56pAuV4XZM58UX8ulw==",
-      "dev": true
+      "dev": true,
+      "optional": true
     },
     "safe-buffer": {
       "version": "5.1.1",
@@ -8041,6 +8125,13 @@
         }
       }
     },
+    "select": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/select/-/select-1.1.2.tgz",
+      "integrity": "sha1-DnNQrN7ICxEIUoeG7B1EGNEbOW0=",
+      "dev": true,
+      "optional": true
+    },
     "semver": {
       "version": "5.4.1",
       "resolved": "https://registry.npmjs.org/semver/-/semver-5.4.1.tgz",
@@ -8419,6 +8510,7 @@
       "resolved": "https://registry.npmjs.org/tar-fs/-/tar-fs-1.16.0.tgz",
       "integrity": "sha512-I9rb6v7mjWLtOfCau9eH5L7sLJyU2BnxtEZRQ5Mt+eRKmf1F0ohXmT/Jc3fr52kDvjJ/HV5MH3soQfPL5bQ0Yg==",
       "dev": true,
+      "optional": true,
       "requires": {
         "chownr": "1.0.1",
         "mkdirp": "0.5.1",
@@ -8431,6 +8523,7 @@
       "resolved": "https://registry.npmjs.org/tar-stream/-/tar-stream-1.5.5.tgz",
       "integrity": "sha512-mQdgLPc/Vjfr3VWqWbfxW8yQNiJCbAZ+Gf6GDu1Cy0bdb33ofyiNGBtAY96jHFhDuivCwgW1H9DgTON+INiXgg==",
       "dev": true,
+      "optional": true,
       "requires": {
         "bl": "1.2.1",
         "end-of-stream": "1.4.0",
@@ -8453,6 +8546,13 @@
         "setimmediate": "1.0.5"
       }
     },
+    "tiny-emitter": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/tiny-emitter/-/tiny-emitter-2.1.0.tgz",
+      "integrity": "sha512-NB6Dk1A9xgQPMoGqC5CVXn123gWyte215ONT5Pp5a0yt4nlEoO1ZWeCwpncaekPHXO60i47ihFnZPiRPjRMq4Q==",
+      "dev": true,
+      "optional": true
+    },
     "tinytim": {
       "version": "0.1.1",
       "resolved": "https://registry.npmjs.org/tinytim/-/tinytim-0.1.1.tgz",
@@ -8518,6 +8618,7 @@
       "resolved": "https://registry.npmjs.org/traceur/-/traceur-0.0.105.tgz",
       "integrity": "sha1-XPne6D1rd4YcPWxE1ThZrterBHk=",
       "dev": true,
+      "optional": true,
       "requires": {
         "commander": "2.9.0",
         "glob": "5.0.15",
@@ -8531,6 +8632,7 @@
           "resolved": "https://registry.npmjs.org/commander/-/commander-2.9.0.tgz",
           "integrity": "sha1-nJkJQXbhIkDLItbFFGCYQA/g99Q=",
           "dev": true,
+          "optional": true,
           "requires": {
             "graceful-readlink": "1.0.1"
           }
@@ -8540,6 +8642,7 @@
           "resolved": "https://registry.npmjs.org/glob/-/glob-5.0.15.tgz",
           "integrity": "sha1-G8k2ueAvSmA/zCIuz3Yz0wuLk7E=",
           "dev": true,
+          "optional": true,
           "requires": {
             "inflight": "1.0.6",
             "inherits": "2.0.3",
@@ -8552,13 +8655,15 @@
           "version": "4.3.6",
           "resolved": "https://registry.npmjs.org/semver/-/semver-4.3.6.tgz",
           "integrity": "sha1-MAvG4OhjdPe6YQaLWx7NV/xlMto=",
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "source-map": {
           "version": "0.1.32",
           "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.1.32.tgz",
           "integrity": "sha1-yLbBZ3l7pHQKjqMyUhYv8IWRsmY=",
           "dev": true,
+          "optional": true,
           "requires": {
             "amdefine": "1.0.1"
           }
@@ -8568,6 +8673,7 @@
           "resolved": "https://registry.npmjs.org/source-map-support/-/source-map-support-0.2.10.tgz",
           "integrity": "sha1-6lo5AKHByyUJagrozFwrSxDe09w=",
           "dev": true,
+          "optional": true,
           "requires": {
             "source-map": "0.1.32"
           }
diff --git a/docs/package.json b/docs/package.json
index 2cec953..a46129f 100644
--- a/docs/package.json
+++ b/docs/package.json
@@ -12,7 +12,7 @@
     "front-matter": "2.1.0",
     "gatsby": "0.11.6",
     "markdown-it": "7.0.0",
-    "prismjs": "1.5.1",
+    "prismjs": "1.21.0",
     "react-transform-catch-errors": "1.0.2",
     "react-transform-hmr": "1.0.4"
   }