Add support for Markdown format
Bump version
Adding badges

* [IMPROVEMENT] Updating Code Climate badge to include Code Climate score.
* [ADDITION] Adding Gem version badge to help easily identify rspec_api_documentation version.
Merge pull request #128 from bhardin/patch-1

Updating PNG badges in README
Merge pull request #120 from pitchtarget/markdown-format

Add support for Markdown format