It was discovered that having only one namespace attribute in the docs is no longer enough given the introduction of the DevWorkspace Operator.

https://coreos.slack.com/archives/C0324DHHGKY/p1660223444239949?thread_ts=1660207155.912239&cid=C0324DHHGKY

https://issues.redhat.com/browse/RHDEVDOCS-4337?focusedCommentId=20784376&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-20784376

So we need to

1. add a second namespace attribute so that one namespace attribute variable has the `openshift-devspaces` and the other namespace attribute variable has the `openshift-operators` value.
2. Look up all instances of the `namespace` attribute in the docs and determine for each instance which attribute it should be, then update each instance of `{namespace}` in the docs accordingly.
3. Look up all hardcoded instances of `openshift-devspaces` and `openshift-operators` and update them with the relevant attribute.

Overall naming / replacement strategy:

• `openshift-operators` ==> subscription, operator
• `openshift-devspaces` ==> CheCluster v2 object, pods, routes