Update miscellaneous.md

docs/ai-testbed/cerebras/miscellaneous.md

@@ -28,6 +28,7 @@ Download the Grafana certificate present on the Cerebras node at /opt/cerebras/c
 3. Drag and drop the downloaded certificate. Once it is added, it is visible as "lab.alcf.anl.gov"
 4. Select the certificate, and ensure that the "Trust" section is set to "Always Trust"
 
+![Cerebras Wafer-Scale Cluster connection diagram](files/grafana_ctl.png)
 
 On your work machine with a web browser, e.g. your laptop,<br>
 tunnel the grafana https port on the cerebras grafana host through to localhost