[doc] update new contributors

[tomsun28]

What's changed?

Checklist

• I have read the Contributing Guide
• I have written the necessary doc or comment.
• I have added the necessary unit tests and all cases have passed.

Add or update API

• I have added the necessary e2e tests and all cases have passed.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 32.64%. Comparing base (d32ec24) to head (488f4e0).

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #2802      +/-   ##
============================================
- Coverage     32.64%   32.64%   -0.01%     
+ Complexity     1904     1903       -1     
============================================
  Files           496      496              
  Lines         18264    18264              
  Branches       2240     2240              
============================================
- Hits           5963     5962       -1     
- Misses        11604    11606       +2     
+ Partials        697      696       -1     

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