Update index.yml

explore/index.yml

@@ -15,8 +15,8 @@ groups:
 - OpenXiangShan
 - sureness
 - chatopera
-- opendilab 
-- oceanbase
+- opendilab
+- oceanbase 
 learning_banner:
 - link: /courses 
   url: https://codechina.csdn.net/codechina/operation-work/uploads/38be577289ba8800a9caa233416cd4b6/1920x480_1_.png