Preparing issue.html for further project branding.

Hi. 
1. I'd like to add the "slugified" name of the project as a fav-... class on the project home page link. I may have done it wrong, please check.

2. Added title on the project home page link to further clarify what will happen when the user clicks on it. 

3. Added the slugified name of the project as in the outermost tag to make it easy to brand any part of the tags inside (not just limited to the project link).

I apologize if I havn't done this correctly. I've simply done my best directly in the GitHub editor since I'm not too experienced in setting up and running servers like this.

Thanks!