Clarifying the update image instructions (#40)

README.md

@@ -94,16 +94,16 @@ Below are instructions for how to deploy this NOMAD Oasis distribution
 
 7. Finally, open [http://localhost/nomad-oasis](http://localhost/nomad-oasis) in your browser to start using your new NOMAD Oasis.
 
-    Whenever you update your image you need to shut down NOMAD using
+#### Updating the image
+1. Whenever you update your image you need to shut down NOMAD using
 
     ```sh
     docker compose down
     ```
 
     and then repeat steps 4. and 5. above.
-8. Clean up old container images:
-
-    You can remove unused images to free up space by running:
+
+2. You can remove unused images to free up space by running
 
     ```sh
     docker image prune -a
@@ -243,4 +243,4 @@ _when trying to pull my docker image._
 Most likely you have not made the package public or provided a personal access token (PAT).
 You can read how to make your package public in the GitHub docs [here](https://docs.github.com/en/packages/learn-github-packages/configuring-a-packages-access-control-and-visibility)
 or how to configure a PAT (if you want to keep the distribution private) in the GitHub
-docs [here](https://docs.github.com/en/packages/working-with-a-github-packages-registry/working-with-the-container-registry#authenticating-with-a-personal-access-token-classic).
+docs [here](https://docs.github.com/en/packages/working-with-a-github-packages-registry/working-with-the-container-registry#authenticating-with-a-personal-access-token-classic).