Accept URLs in filepath

Author: akshowhini

example-code.ipynb

@@ -183,7 +183,10 @@
     "colab": {}
    },
    "source": [
-    "filepath = r'testimages/chervolet.jpg'\n",
+    "# filepath = \"image_path_or_image_url_with_tables\"\n",
+    "# filepath = r'samples/BlurryImage.jpg'\n",
+    "filepath = \"https://raw.githubusercontent.com/ExtractTable/ExtractTable-py/master/samples/QualityImage.jpg\"\n",
+    "\n",
     "table_data = et_sess.process_file(filepath)"
    ],
    "execution_count": 0,