standardize the spelling of "examples"

[xiangtianyu]

No description provided.

[linux-foundation-easycla]

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 89.99%. Comparing base (9631f54) to head (c8e01ef).

Additional details and impacted files

@@            Coverage Diff            @@
##               main    #7611   +/-   ##
=========================================
  Coverage     89.99%   89.99%           
  Complexity     7079     7079           
=========================================
  Files           803      803           
  Lines         21419    21419           
  Branches       2086     2086           
=========================================
  Hits          19276    19276           
  Misses         1479     1479           
  Partials        664      664           

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