Update .env

Typo from "onyl" to "only"

docker-compose/.env

@@ -50,7 +50,7 @@ QBITTORRENT_PRIVOXY_PORT=8118
 # Setup instructions https://trash-guides.info/Hardlinks/How-to-setup-for/Synology/#pullio-auto-update-docker-compose-the-correct-way
 # If you want your containers to be updated
 PULLIO_UPDATE=true
-# If you want a notification when there's a update, onyl discord webhook notifications is supported.
+# If you want a notification when there's a update, only discord webhook notifications is supported.
 # Adding no discord webhook will disable the notifications!!!
 # check for more info https://hotio.dev/pullio/ and how to add the webhook.
 PULLIO_NOTIFY=true