added zhtw translation for chapter 7
removed extra spaces
replaced all "" with 「」 in zhtw translation for chapter 7
Updated according to the suggestions
fine tune
fine tune
Revert the titles in `Didn't Pass?` part to English. Removed extra spaces.
Merge pull request #95 from fredchu/zhtw-7

Zhtw 7: Branches Aren't Just For Birds