Add Cloudflare auto-minify to FAQ (go-gitea#20430)

Author: jolheiser

docs/content/doc/help/faq.en-us.md

@@ -403,3 +403,9 @@ gitea doctor recreate-table
 ```
 
 It is highly recommended to back-up your database before running these commands.
+
+
+## Why are tabs/indents wrong when viewing files
+
+If you are using Cloudflare, turn off the auto-minify option in the dashboard.  
+`Speed` -> `Optimization` -> Uncheck `HTML` within the `Auto-Minify` settings.