Fix typos in serveral docs

[wenxin-cn]

Why are the changes needed?

fix typos in docs

How was this patch tested?

NO

Was this patch authored or co-authored using generative AI tooling?

No

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 0.00%. Comparing base (65d4b33) to head (5a50a92).
Report is 5 commits behind head on master.

Additional details and impacted files

@@          Coverage Diff           @@
##           master   #6964   +/-   ##
======================================
  Coverage    0.00%   0.00%           
======================================
  Files         689     689           
  Lines       42637   42637           
  Branches     5804    5804           
======================================
  Misses      42637   42637           

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