Fixes doc error: namespace name must have changed

[bentito]

$ kubectl -n local get deployments
No resources found in local namespace.

$ kubectl -n olm get deployments
NAME READY UP-TO-DATE AVAILABLE AGE
catalog-operator 1/1 1 1 6m11s
olm-operator 1/1 1 1 10m
packageserver 1/1 1 1 10m

Description of the change:
Fixing an error in the install docs.

Motivation for the change:
Error was found

Architectural changes:
None

Testing remarks:

Reviewer Checklist

• Implementation matches the proposed design, or proposal is updated to match implementation
• Sufficient unit test coverage
• Sufficient end-to-end test coverage
• Bug fixes are accompanied by regression test(s)
• e2e tests and flake fixes are accompanied evidence of flake testing, e.g. executing the test 100(0) times
• tech debt/todo is accompanied by issue link(s) in comments in the surrounding code
• Tests are comprehensible, e.g. Ginkgo DSL is being used appropriately
• [ x] Docs updated or added to /doc
• Commit messages sensible and descriptive
• Tests marked as [FLAKE] are truly flaky and have an issue
• Code is properly formatted

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: bentito, timflannagan

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS [timflannagan]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[timflannagan]

@bentito Looks like you need to sign the DCO before this can merge.

[timflannagan]

/lgtm