Update performance-tweaks.md

Author: shyim

guides/hosting/performance/performance-tweaks.md

@@ -222,5 +222,5 @@ The `business_event_handler_buffer` handler logs flow. Setting it to `error` wil
 
 ## Disable App url external check
 
-On any Administration load Shopware tries to request himself to test that the configured `APP_URL` inside `.env` is correct. 
+On any Administration load Shopware tries to request himself to test that the configured `APP_URL` inside `.env` is correct.
 If your `APP_URL` is correct, you can disable this behaviour with an environment variable `APP_URL_CHECK_DISABLED=1`.