Merge pull request #1 from ade951/master

add some documents of this project
Merge pull request #1 from Jayin/master

sync
edit .gitignore
1st upload
2
Merge pull request #2 from Jayin/master

sync
Merge pull request #2 from ade951/master

Signed-off-by: 张剑伟 <349524438@qq.com>
Update README.md
Update README.md
Update README.md
Update README.md
create db-table-diagram partly
Merge pull request #4 from Fritz-Lium/master

 nice
Merge pull request #2 from Jayin/master

ok