fix: improve cluster create comment

[yipeng1030]

fix #561

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 14.28571% with 6 lines in your changes missing coverage. Please review.

Project coverage is 41.42%. Comparing base (1c84c8d) to head (511c884).
Report is 4 commits behind head on main.

Files with missing lines	Patch %	Lines
pkg/cmd/cluster/create.go	14.28%	6 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #570      +/-   ##
==========================================
- Coverage   41.43%   41.42%   -0.01%     
==========================================
  Files         187      187              
  Lines       25053    25057       +4     
==========================================
  Hits        10380    10380              
- Misses      13495    13499       +4     
  Partials     1178     1178              

Flag	Coverage Δ
unittests	41.42% <14.28%> (-0.01%)	⬇️

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[wangyelei]

/cherry-pick release-1.0

[apecloud-bot]

🤖 says: cherry pick action finished successfully 🎉!
See: https://github.com/apecloud/kbcli/actions/runs/13448989358