Merge pull request #2 from wendycan/master

Add welcome to home page
change step3.png
use http instead of https
change redirect
fix name bug
update index
use production search
add link to blog
Merge pull request #3 from wendycan/master

Change logo， modified sub nav style
use small image
Merge branch 'master' of https://github.com/tinysou/tinysou.com
Fix style for small device