1. Make sure your settings.local.php file contains `$settings['container_yamls'][] = __DIR__ . '/services.local.yml';`
2. Copy the [settings.local.yml](https://snippets.cacher.io/snippet/dd4a5e559cd7b0ad9ae5) to /sites/default
# Important!
If in /admin/config/development/performance, the minify html box is checked, your debug comments get removed and you'll only see the html template suggestions, with none of the sub-template suggestions.