Merge branch 'master' into 'master'

updates

See merge request codechina/operation-work!67

explore/index.yml

@@ -2,21 +2,21 @@ banner:
 - link: https://codechina.csdn.net/courses/detail/1/l
   url: https://codechina.csdn.net/codechina/operation-work/uploads/3d1c29bc9e4003473c6f746c075722cb/Git%E5%9F%BA%E7%A1%80%E5%85%A5%E9%97%A8.jpg
 groups:
-- rt-thread
-- sureness
-- xazbkj
-- milvus-io
-- c-csdn
-- oaid
+- openharmony
+- chatopera
 - paddlepaddle
-- apache
+- oaid
+- finogeeks
 - webank
-- jenkins-zh
-- flipped-aurora
-- xiaomi
-- mindspore
-- csdn
 - COPU
+- teebbstudios
+- didi
+- openeuler
+- csdn
+- xazbkj
+- second-state
+- kubesphere
+- sureness
 learning_banner:
 - link: https://codechina.csdn.net/courses
   url: https://codechina.csdn.net/codechina/operation-work/uploads/38be577289ba8800a9caa233416cd4b6/1920x480_1_.png