Fix doc of operator README for install crds

[liangyuanpeng]

What type of PR is this?

/kind documentation

What this PR does / why we need it:

Today, It will be failed when follow the doc to create karmada instance.

Which issue(s) this PR fixes: Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

NONE

[codecov-commenter]

Codecov Report

Merging #3580 (87fcabb) into master (218a0b2) will decrease coverage by 0.01%. The diff coverage is n/a.

:exclamation: Your organization is not using the GitHub App Integration. As a result you may experience degraded service beginning May 15th. Please install the Github App Integration for your organization. Read more.

@@            Coverage Diff             @@
##           master    #3580      +/-   ##
==========================================
- Coverage   55.86%   55.85%   -0.01%     
==========================================
  Files         216      216              
  Lines       20121    20121              
==========================================
- Hits        11240    11238       -2     
- Misses       8276     8278       +2     
  Partials      605      605              

Flag	Coverage Δ
unittests	55.85% <ø> (-0.01%)	:arrow_down:

Flags with carried forward coverage won't be shown. Click here to find out more.

see 1 file with indirect coverage changes

[Poor12]

/assign @calvin0327

[calvin0327]

thanks /lgtm

[calvin0327]

@liangyuanpeng Please retry the ci worlflow, you can push the branch again.

[liangyuanpeng]

Please retry the ci worlflow, you can push the branch again.

Thanks for your remind and I think it's not necessary to rerun ci, the ci fail is not about this PR. And we have not ci for this doc.

Created issue to tracing it. https://github.com/karmada-io/karmada/issues/3583

[XiShanYongYe-Chang]

The CI fail for E2E delete kind cluster failed, ask @RainbowMango to help rerun the test. /cc @RainbowMango

[calvin0327]

@liangyuanpeng Yeah, the failed ci workflow is not relate to the PR, But it is better to follow that the ci workflow of every PR is passed.

[RainbowMango]

The CI fail for E2E delete kind cluster failed, ask @RainbowMango to help rerun the test. /cc @RainbowMango

Done

[Poor12]

/approve

[karmada-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: Poor12

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: - ~~[operator/OWNERS](https://github.com/karmada-io/karmada/blob/master/operator/OWNERS)~~ [Poor12] Approvers can indicate their approval by writing `/approve` in a comment Approvers can cancel approval by writing `/approve cancel` in a comment