fail when original file not exist
.travis.ymlにidobataのhookを追加
add compare_docs task
add octokit gem
Merge pull request #123 from melborne/update-rake

fail when original file not exist
Merge pull request #125 from jekyllrb-ja/add-travis-notification

.travis.ymlにidobataのhookを追加
Fix broken URLs

- Travis-CI badge URL
- SSH clone URL
Fix confusing URLs

誤解を招く可能性のあるURLを修正
Merge pull request #127 from harupong/broken-urls

README.md の URL 修正
Merge pull request #126 from melborne/compare-docs-task

add compare_docs task
README.mdを整備 #14 #97