Merge branch 'master' into 'master'

更新explore/index.yml

See merge request codechina/operation-work!3

explore/index.yml

@@ -4,13 +4,15 @@ banner:
 trending_words: 
   - content: 'ruby on rails'
     link: 'http://www.baidu.com'
-  - content: rails 
-    link: 'http://www.baidu.com'
+  - content: csdn 
+    link: 'https://www.csdn.net/'
   - content: ror
     link: 'http://www.baidu.com'
 projects: 
   - 'codechina/explore'
   - 'pulltheflower/one_sentence1'
+  - 'mirrors/npm/npm'
 groups: 
   - 'pmp/tmp'
-  - pmp
\ No newline at end of file
+  - pmp
+  - codechina