Revert "Merge pull request #437 from gdevillele/fix_keywords_format"

This reverts commit 13ddc1350e, reversing
changes made to 7a11f05943.

opensource/code.md

@@ -2,7 +2,8 @@
 aliases:
 - /contributing/contributing
 description: Contribute code
-keywords: governance, board, members, profiles
+keywords:
+- governance, board, members, profiles
 menu:
   main:
     parent: mn_oss_contrib
@@ -82,4 +83,4 @@ pull request</a>.
 
 7. <a href="http://docs.docker.com/opensource/workflow/review-pr/"
 target="_blank">Participate in the pull request review</a> till a successful
-merge.
+merge.