Update README.md

Testing Travis CI
Merge branch 'master' of https://github.com/pendext/cuke_sniffer

Conflicts:
	README.md
Merge branch 'master' of https://github.com/r-cochran/cuke_sniffer
Merge branch 'master' of https://github.com/r-cochran/cuke_sniffer
Added functionality to generate pdf report from the command line.
Updated README to reflect PDF output updates
Fixed README
Refactored pdf output updates in cli.rb, added dependency to gemspec file
Merge pull request #54 from pendext/pdf_report

PDF Report Option