docs: Update helm list command in installation guide to use new names…

…paces. (#730)

**Reason for Change**:

Fix to onboarding documentation. New users might be surprised to find no
helm deployments when in fact they were pushed correctly.

**Requirements**

- [ ] added unit tests and e2e tests (if applicable). N/A

**Issue Fixed**:

None

**Notes for Reviewers**:

Fix after #706.

docs/installation.md

@@ -105,7 +105,8 @@ You can run the following commands to verify the installation of the controllers
 Check status of the Helm chart installations.
 
 ```bash
-helm list -n default
+helm list -n kaito-workspace
+helm list -n gpu-provisioner
 ```
 
 Check status of the `workspace`.