Merge pull request #1 from BE-FE/master

Master
add comment and improve README

add comment and improve README
README

README
README

README
README

README
Change ul & li class name

Change ul & li class name
README

README
README improve

README improve
README

README
README improve

README improve
README improve

README improve
README

README
README improve

README improve
README improve

README
README

README
REAMDE

REAMDE
fix typo

fix typo
add comment

add comment
Merge pull request #14 from lcxfs1991/master

Simplify Structure and Add README