Enable edit button on developer guides

Author: adam-cowley

developer.yml

@@ -11,7 +11,6 @@ content:
     - '!**/_includes/*'
     - '!**/readme.adoc'
     - '!**/README.adoc'
-    edit_url: ~
 
   - url: https://github.com/neo4j-documentation/labs-pages.git
     branches: publish