add bioinformatics introduction ppt
Merge pull request #1 from OshynSong/master

Create test
Merge pull request #2 from hualichenxi/test

add bioinformatics introduction ppt
增加西医链接图
add reasoning_code
pic
Merge pull request #3 from OshynSong/master

处理思路和数据源关联图
Merge remote-tracking branch 'cloud/master'