Update index.html

index.html

@@ -28,6 +28,6 @@
 			}
 		</script>
 		<script src="https://cdn.staticfile.org/docsify/4.9.4/docsify.min.js"></script>
-		<script src="//unpkg.com/docsify/lib/plugins/ga.min.js"></script>
+		<script src="https://unpkg.com/docsify/lib/plugins/ga.min.js"></script>
 	</body>
 </html>