Installing operator documentation is incorrect

[jasonmccallister]

Expected Behavior

Following the instructions on installing the operator is confusing. On the Install knative operator page, the following statement is displayed:

Because the Operator is installed to the default namespace, ensure you set the current namespace to default by running the command

However, the namespace the operator is installed into is knative-operator and it is specific in the YAML files for the version provided in the URL.

Actual Behavior

I expect the operator is installed in the default namespace.

Steps to Reproduce the Problem

1. Following the instructions on installing the operator
2. Run the commands in the order presented in the documentation
3. No deployments are found in the default namespace

[skonto]

cc @houshengbo

[skonto]

@houshengbo gentle ping