Make GitHub link more prominent on web site

[ryandesign]

Hi! I originally found your DOLORES library at your web site:

http://www.golombeck.eu/index.php?id=48&L=1

Not seeing any mention of a repository or a preferred way to report bugs to you, I contacted you by email using the contact form on your web site.

I now found this GitHub repository and see that it is in fact mentioned on your web site but only as a line item within the "Former STABLE release" section:

• Find the source code for the base library on GitHub (released under GNU gpl3).

I hadn't initially paid attention to the "Former STABLE release" section since I saw no reason why I wouldn't want to use the latest stable version.

I think it would be a good idea to move the reference to the GitHub repository out of the "Former STABLE release" section and up into one of the first few paragraphs on the page to make it more likely to be seen by everyone.