docs/services/etherpad.md in decidim-0.21.0 vs docs/services/etherpad.md in decidim-0.22.0

@@ -30,10 +30,10 @@
 }
 ```
 
 and then in `config/secrets.yml`:
 
-```
+```yaml
   etherpad:
     server: <%= ENV["ETHERPAD_SERVER"] %>
     api_key: <%= ENV["ETHERPAD_API_KEY"] %>
     api_version: <%= ENV["ETHERPAD_API_VERSION"] %>
 ```