Update README.md
Update CSS and background on homepage

- Fixed a height issue with the large download button #84
- Rollover at top navigation was removed #86
- Fix background for links on homepage
Merge pull request #95 from froschdesign/master

Update CSS and background on homepage
Merge branch 'hotfix/95'

Close #95
Merge pull request #87 from froschdesign/patch-1

Update README.md
[#87] Fix path to app.min.css

- should be in the CSS directory, not document root
Merge branch 'hotfix/87'

Close #87