Fixed minor typo in nginx.ng.config.sls
Merge pull request #21 from TaiSHiNet/master

Fixed minor typo in nginx.ng.config.sls
fix link to formula usage instructions
Merge pull request #26 from fly/fix-doclink

fix link to formula usage instructions
Remove useless if statement in source.sls
Group source.sls include declarations into one
Correct requisite ID in source.sls
Merge pull request #29 from ahmadsherif/patch-3

Fix errors in source.sls
Merge branch 'master' of https://github.com/saltstack-formulas/nginx-formula