Add 7.6 questions
Update 7.6 answers
Add 7.7 questions.
Add 7.7.1 answer.
Add 7.7.2-2 answer.
Add 7.7.3~7.7.5 answers, I am not sure.
Update readme.
Update readme.
Add 8.2 questions and 8.2.1 answer.
Add partial answers, waitting for review.
Update format.
Add my questions.
Merge pull request #2 from fool2fish/master

pull from origin