Merge pull request #4 from leemunroe/lee/docs

Lee/docs
Merge branch 'master' of git://github.com/mailgun/documentation
fixed css url path
Merge pull request #5 from leemunroe/lee/docs

fixed css url path
Merge pull request #2 from leemunroe/master

pull request from leemonroe
Merge pull request #7 from hueyl77/master

pull request from hueyl77 - fixed css url