Typo in Quickstart section.

Author: Florian Lautenschlager

_includes/quickstart.html

@@ -11,7 +11,7 @@ <h2>Quickstart</h2>
             <div class="col-lg-12">
 
                 <p>
-                    Get up and running with Chronix in <b>3 minutes</b> with our quickstart guide:.<br>
+                    Get up and running with Chronix in <b>3 minutes</b> with our quickstart guide:<br>
                 </p>
                 <h4>Prerequisites</h4>