Merge pull request #1 from Ping0314/barbarchery2

Creating new pull request for barbarchery2
2nd commit / Wk7
3rd commit / wk7
Merge pull request #3 from Ping0314/pingli

2nd commit / Wk7
4th commit / wk7
Merge pull request #4 from Ping0314/pingli

4th commit / wk7
Create README.md

Dec.2.2014 / Updates for Week7 homework.
Merge pull request #5 from Ping0314/master

Ready to push new css and changed html file of instructors page