Fixed typo in 2014-12-18-ruby-2-2-0-rc1-released.md (en)
Fix Rails blog link in 2.2.0-rc1 release post.
Merge pull request #925 from JuanitoFatas/fix/doc-link

Fix Rails blog link in 2.2.0-rc1 release post.
Merge pull request #923 from gmitrev/news-ruby-2-2-0-rc1-en-typo

Fixed typo in 2014-12-18-ruby-2-2-0-rc1-released.md (en)