diff --git a/README.md b/README.md
index b705f81..ad44a00 100644
--- a/README.md
+++ b/README.md
@@ -75,7 +75,11 @@ localhost:
 go to the server, inside the theme directory `git fetch --all` and then `git checkout main` and finally `git pull`
 
 
+## Drupal enable debug mode
+This way we can check the html source code and see where the files are generated.
 
+edit `/var/www/html/sites/default/services.yml` set option `debug: true` and go into drupal admin *configuration* -> *development* -> *performance* and **clear all caches**
+the url is https://MYWEBSITE.COM/admin/config/development/performance
 
 ---