DocsViewer fix/suggestion

The docs viewer does not work when viewing pages over HTTPS. This is because the URL for the docs viewer API is using HTTP and the browser will not load insecure content from an HTTPs page. I suggest changing the API URL used in the plugin to the protocol-free format: // on line 16 of DocsViewerPlugin.php

I have made this change to our local install and seen no problems.

Many thanks! That sounds right to me