Incomplete github URLs

[mattrude]

After activating the plugin, the github feed URL's are not fully qualified and are leading back to the hosting site.

Example: the main feed URL is listed as /<username> instead of https://github.com/<username> (see here for a live example), this seems to be true for all URL's created by this plugin.

Looking at the code around line 130 it looks like a java script is intended to update the URL's by adding https://github.com/ to the beginning, but this script does not seem to be updating the URL as intended.