Fix typo in index.md

Corrected a typo from 'diable' to 'disable' in the documentation.

Author: RuggMatt

symfony/index.md

@@ -160,7 +160,7 @@ docker compose up --wait
 > ```
 
 The `SERVER_NAME` is used by Caddy server, specify `localhost:8080` if you want any other address or
-to diable https.
+to disable https.
 
 This starts the following services: