Update git log style

Improve readability with Different colors
for different refs
Merge pull request #39 from pmiossec/patch-1

Update git log style
Update screenshot, as mentioned in #39
Read only task lists in markdown documents
Update task list in markdown documents
Update header for sub-catagory
Update Japanese translation
GitHub Training Kit as a resource
Merge pull request #41 from matthewmccullough/add-github-training-materials

GitHub Training Kit as a resource
Merge pull request #40 from hail2u/ja-translation

Update Japanese translation
Update Korean to abc27e9c
Merge pull request #43 from marocchino/ko-translation

Update Korean to abc27e9c
Merge pull request #1 from tiimgreen/master

pull in updates