Merge branch 'master' into 'master'

updates

See merge request codechina/operation-work!74

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:
-- openharmony
-- chatopera
-- paddlepaddle
-- oaid
-- finogeeks
-- webank
-- COPU
-- teebbstudios
-- didi
-- openeuler
-- csdn
+- justauth
+- mindspore
+- codechina
+- apache
 - xazbkj
-- second-state
 - kubesphere
-- sureness
+- webank
+- rt-thread
+- openharmony
+- xiaomi
+- jeecg
+- jenkins-zh
+- oaid
+- dcloud
+- wechaty
 learning_banner:
 - link: https://codechina.csdn.net/courses
   url: https://codechina.csdn.net/codechina/operation-work/uploads/38be577289ba8800a9caa233416cd4b6/1920x480_1_.png