docs(docker): don't use underscores for max request size

docs/deploying/docker-compose.with-traefik.yml

@@ -38,7 +38,7 @@ services:
             # CONDUIT_ALLOW_FEDERATION: 'true'
             # CONDUIT_ALLOW_CHECK_FOR_UPDATES: 'true'
             # CONDUIT_DATABASE_PATH: /srv/conduit/.local/share/conduit
-            # CONDUIT_MAX_REQUEST_SIZE: 20_000_000  # in bytes, ~20 MB
+            # CONDUIT_MAX_REQUEST_SIZE: 20000000  # in bytes, ~20 MB
 
     # We need some way to server the client and server .well-known json. The simplest way is to use a nginx container
     # to serve those two as static files. If you want to use a different way, delete or comment the below service, here