Update README.md

README.md

@@ -87,9 +87,11 @@ wis2-gdc archive foo.zip
 The Docker setup uses Docker and Docker Compose to manage the following services:
 
 - **wis2-gdc-api**: GDC API powered by [pygeoapi](https://pygeoapi.io)
-- **Elasticsearch**: GDC search engine backend
+- **wis2-gdc-metrics-collector**: GDC metrics collector
+- **wis2-gdc-broker**: MQTT broker
 - **wis2-gdc-management**: management service to ingest, validate and publish discovery metadata published from a WIS2 Global Broker instance
-  - the default Global Broker connection is to Météo-France.  This can be modified in `pywis-pubsub.yml` to point to an alternate Global Broker
+  - the default Global Broker connection is to Météo-France.  This can be modified in `wis2-gdc.env` to point to a different Global Broker
+- **Elasticsearch**: GDC API search engine backend
 
 See [`wis2-gdc.env`](wis2-gdc.env) for default environment variable settings.