docs: Fix docker compose example in readme (fix #172)

Signed-off-by: Julius Knorr <[email protected]>

README.md

@@ -37,6 +37,8 @@ occ config:app:set whiteboard collabBackendUrl --value="http://nextcloud.local:3
 occ config:app:set whiteboard jwt_secret_key --value="some-random"
 ```
 
+### Running the server
+
 #### Local node
 
 This mode requires at least Node 20 and NPM 10 to be installed. You can clone this repository, checkout the release version matching your whiteboard app.
@@ -49,22 +51,12 @@ JWT_SECRET_KEY="some-random" NEXTCLOUD_URL=http://nextcloud.local npm run server
 
 #### Docker
 
-### Building the image
-
-The image can be built using the following command:
-
-```bash
-docker build -t nextcloud-whiteboard-server
-```
-
-### Running the server
-
 The server requires the `NEXTCLOUD_URL` environment variable to be set to the URL of the Nextcloud instance that the Whiteboard app is installed on. The server will connect to the Nextcloud instance and listen for whiteboard events.
 
 The server can be run in a container using the following command:
 
 ```bash
-docker run -e JWT_SECRET_KEY=some-random -e NEXTCLOUD_URL=https://nextcloud.local --restart unless-stopped -d ghcr.io/nextcloud-releases/whiteboard:release
+docker run -e JWT_SECRET_KEY=some-random -e NEXTCLOUD_URL=https://nextcloud.local --rm ghcr.io/nextcloud-releases/whiteboard:release
 ```
 
 Docker compose can also be used to run the server:
@@ -76,13 +68,20 @@ services:
     image: ghcr.io/nextcloud-releases/whiteboard:release
     ports:
       - 3002:3002
-    environment:
     environment:
       - NEXTCLOUD_URL=https://nextcloud.local
       - JWT_SECRET_KEY=some-random-key
 
 ```
 
+#### Building the image locally
+
+While we publish image on the GitHub container registry you can build the image locally using the following command:
+
+```bash
+docker build -t nextcloud-whiteboard-server -f Dockerfile .
+```
+
 ### Reverse proxy
 
 #### Apache