Revert "Revert "Adding bash command to list strapi controllers (#2069)""

This reverts commit 03a1ea7.

Author: pwizla

docusaurus/docs/dev-docs/cli.md

@@ -430,6 +430,10 @@ strapi hooks:list
 
 Display a list of all the registered [controllers](/dev-docs/backend-customization/controllers.md).
 
+```bash
+strapi controllers:list
+```
+
 ## strapi services:list
 
 Display a list of all the registered [services](/dev-docs/backend-customization/services.md).