added clarity on what to do on docker permission denied daemon socket

_partials/docker.md

@@ -20,4 +20,15 @@ docker info
 
 You should get:
 
+<details>
+  <summary markdown='span'>❗️ I recieved a permission denied when trying to connect to the Docker Daemon. </summary>
+
+If you recieved an error similar to the one below. navigate to the (GCP Compute Engine Console)[https://console.cloud.google.com/compute/instances] and STOP your VM (closing VSCode is not enough).
+
+![](images/docker_permission_denied_socket.png)
+
+It will take a few minutes for your VM to turn off. Once it's fully off, turn your VM on again (check the box and click START) and try `docker run hello-world` again. If this doesn't work, raise a ticket with a teacher.
+
+</details>
+
 ![](images/docker_info.png)