add styled git log
add image to styled git log
Added link that shows every Emoji icon as a separate commit and file for official reference.
Add example, make information more verbose
Added clarification of Emoji Icons and Commit Messages
Merge pull request #7 from W4RH4WK/master

add styled git log
Merge pull request #8 from ncerminara/master

Updated Emoji Icon section with more clarification and resources.
Add helper link
Add Contents, update titles
Update References
Update Contributing for Contents Menu
Make Keyboard Shortcut intructions clearer
Merge branch 'master' of https://github.com/tiimgreen/github-cheat-sheet
Update Japanese tralslation

TODO: Update ToC.