Merge pull request #2 from ls1intum/chore/add-development-setup-expla…

…nation

`Chore`: Add development setup explanation to ReadMe

README.md

@@ -1 +1,26 @@
 Use `docker compose up` for quick start.
+
+## Development
+
+### Running [Artemis](https://github.com/ls1intum/Artemis) in parallel (locally)
+Adjust the port on which the telemetry service and its database are running (with the default configuration Artemis will be running on port `8080` and a mysql database on port `3306`).
+
+Adjust the `docker-compose.yml` accordingly, e.g. the following adjustments will be needed to run the telemetry service on port `8081` and its database on port `3307`:  
+```
+services:
+telemetry:
+  ports:
+    - '127.0.0.1:8081:8080'
+mysql:
+  ports:
+    - "3307:3306"
+```
+
+For using the local telemetry service in a development setup you will need to adjust the `application-dev.yml` (within Artemis, not within the telemetry service) accordingly:
+```
+artemis:
+  telemetry:
+    enabled: true
+    sendAdminDetails: true
+    destination: http://localhost:8081
+```