enabler: Add docs

internal-lab-setup-assets/images/README.md

@@ -14,6 +14,21 @@ But... if you happen to have the Cisco XRd image from CCO, here are some notes.
 
 2. Move it into the `images/` folder in this repository on your lab VM.
 
-3. Load it into docker and tag it locally
-  - `docker load -i xrd-control-plane-container-x64.dockerv1.tgz`
-  - `docker tag localhost/ios-xr:7.11.1 localhost/xrd-control-plane` (note: match the version to the one you downloaded, which may be newer)
+3. Load it into docker and tag it locally with `docker load -i xrd-control-plane-container-x64.dockerv1.tgz`
+
+4. Note the image name in the output, probably something like "xrd-control-plane:7.11.1"
+  ```
+  $ sudo docker load -i xrd-control-plane-container-x64.dockerv1.tgz
+  826e1dd2a198: Loading layer [==================================================>]   1.32GB/1.32GB
+  Loaded image: ios-xr/xrd-control-plane:7.11.1
+  ```
+
+5. Update the workshop.clab.yml.j2 Jinja template at the top of this repository to use the image wherever you please. For instance, like so:
+  ```
+  topology:
+    kinds:
+      cisco_xrd:
+        image: ios-xr/xrd-control-plane:7.11.1
+  ```
+
+6. You are ready to generate and load your lab!