Minor spelling tweaks
Fix broken links in Readme
added a Gemfile for dependencies to ease installation for ruby beginners
Merge branch 'dependencies'
added then for quality update limit of 50
Merge branch 'master' of https://github.com/kaichanvong/gilded_rose_kata
(Pull Request #3 in upstream)
Merge branch 'errata' of https://github.com/koriroys/gilded_rose_kata
Pull Request #2 in upstream.