Adding CONTRIBUTING.md to help with PR.
Adding CONTRIBUTING.md to help with PR.

Read more: https://github.com/blog/1184-contributing-guidelines
promisejohn/gitrob,kod3r/gitrob,promisejohn/gitrob,mikemackintosh/gitrob,kod3r/gitrob,mikeli/gitrob,Beercow/gitrob,LubyRuffy/gitrob,Beercow/gitrob,mikemackintosh/gitrob,johan--/gitrob,kod3r/gitrob,sechacking/gitrob,drptbl/gitrob,promisejohn/gitrob,adamdecaf/gitrob,mikeli/gitrob,mikeli/gitrob,Beercow/gitrob,adamdecaf/gitrob,johan--/gitrob,drptbl/gitrob,LubyRuffy/gitrob,mikemackintosh/gitrob,drptbl/gitrob,johan--/gitrob,sechacking/gitrob,adamdecaf/gitrob,sechacking/gitrob,LubyRuffy/gitrob