Update README.md
fix the missing bracket in .
Merge pull request #2 from jcpplus/branch_fix_css3_resSvg

fix the missing bracket in .
modify BEM mixins
Update README.md
add AMCSS mixins and function
add parent nth status mixins
add parent nth status mixins
Update README.md

add new resoure
Merge pull request #1 from airen/master

merge