Fix typo.
Update README.md

demonstrate git commands about upstream.
Add the git setup guide in lesson 4.
Add lesson 5.
Add fashion blog part 1 solution
Prepare lesson 6.
fix the time distribution.
Sync
Add fashion blog part 2 solution
Add startup matchmaker solution
Add traffic light solution
Upload lesson 7 and 8.
temp converter solution.
should be FEWD5 day.
Prepare lesson 9 and 10.
Let's talk about basic debugging using chrome inspector in lesson 10.
add one more slide about the debug.
move the debug part after we talked about iteration.
Upload lesson 11 and 12.
The jquery .on() demo should be in lesson 12.