Updated .env.example file to hold the credential keys.

.env.example

@@ -56,3 +56,7 @@ VITE_PUSHER_HOST="${PUSHER_HOST}"
 VITE_PUSHER_PORT="${PUSHER_PORT}"
 VITE_PUSHER_SCHEME="${PUSHER_SCHEME}"
 VITE_PUSHER_APP_CLUSTER="${PUSHER_APP_CLUSTER}"
+
+SYMFONY_CAST_BASE_URL=https://symfonycasts.com
+SYMFONY_CAST_LOGIN=
+SYMFONY_CAST_PASSWORD=