Change playground cmd in contributing

bidoubiwa · bidoubiwa · commit 74582c1c423c · 2021-11-24T18:05:41.000+01:00
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
@@ -44,7 +44,7 @@ yarn install
 A playground of a VuePress environment is provided to test the plugin.
 
 ```bash
-yarn serve
+yarn playground
 ```
 
 Then, open your browser on the indicated URL and test the search bar 🙂
