Add top companies for open source in China

Author: AJLoveChina

collections/open-source-organizations/index.md

@@ -17,6 +17,9 @@ items:
  - OSGeo/osgeo
  - godaddy/godaddy.github.io
  - cloudflare/cloudflare.github.io
+ - eleme/eleme.github.io
+ - alibaba/alibaba.github.com
+ - baidu/baidu.github.io
 display_name: Open source organizations
 created_by: benbalter
 image: open-source-organizations.png