Fix instructions.

README.md

@@ -8,13 +8,11 @@
 
 When using the Docker version of Netbox, first follow the [netbox-docker quickstart](https://github.com/netbox-community/netbox-docker#quickstart) instructions to clone the netbox-docker repo and set up the `docker-compose.override.yml`.
 
-Next, follow the [plugin instructions](https://github.com/netbox-community/netbox-docker/wiki/Using-Netbox-Plugins) to install the Netbox SLM plugin.
+Next, follow the following instructions (based on these generic [plugin instructions](https://github.com/netbox-community/netbox-docker/wiki/Using-Netbox-Plugins)) to install the Netbox SLM plugin:
 
-After following these instructions, you should have:
-
-- added `netbox_slm` to the `PLUGINS` list in `configuration/configuration.py`,
-- created a `plugin_requirements.txt` with `netbox-slm==0.9` as contents, and
-- created a `Dockerfile-SLM` with contents:
+1. Add `netbox_slm` to the `PLUGINS` list in `configuration/configuration.py`.
+2. Create a `plugin_requirements.txt` with `netbox-slm==0.9` as contents.
+3. Create a `Dockerfile-SLM` with contents:
 
 ```Dockerfile
 FROM netboxcommunity/netbox:v3.0.9  # The Netbox SLM plugin currently only works with v3.0.9 of Netbox due to backwards incompatible changes in newer version of Netbox
@@ -23,8 +21,27 @@ COPY ./plugin_requirements.txt /
 RUN /opt/netbox/venv/bin/pip install --no-warn-script-location -r /plugin_requirements.txt
 ```
 
-Build the image: `docker compose build --no-cache`
-Run Netbox with the SLM plugin: `docker compose up -d`
+4. Create a `docker-compose.override.yml` with contents:
+
+```yaml
+version: '3.4'
+services:
+  netbox:
+    ports:
+      - 8000:8080
+    build:
+      context: .
+      dockerfile: Dockerfile-SLM
+    image: netbox:slm
+  netbox-worker:
+    image: netbox:slm
+  netbox-housekeeping:
+    image: netbox:slm
+```
+
+Now, build the image: `docker compose build --no-cache`
+
+And finally, run Netbox with the SLM plugin: `docker compose up`
 
 ### Releasing Guide