Update index.html

added Debian Wheezy 7.4.0 amd64 - Chef 11.10.0
Update index.html

fixed typo
Update index.html

added Debian Wheezy 7.4.0 amd64 - Vanilla
Update index.html

formatting update
Update index.html

formatting
Merge pull request #274 from coderfi/master

added Debian Wheezy 7.4.0 vagrant boxes