Update jest-each serializing docs

[mattphillips]

Summary

Improve jest-each docs for serializing values in test titles.

Test plan

[mattphillips]

Do I need to generate the new versioned docs as part of this change?

[codecov-io]

Codecov Report

Merging #6337 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #6337   +/-   ##
=======================================
  Coverage   63.89%   63.89%           
=======================================
  Files         228      228           
  Lines        8705     8705           
  Branches        4        3    -1     
=======================================
  Hits         5562     5562           
  Misses       3142     3142           
  Partials        1        1

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[SimenB]

Do I need to generate the new versioned docs as part of this change?

Updating 23 would be great

[mattphillips]

@SimenB I've regenerated the docs as 23.0 as we don't put patches in the doc versions right?

[github-actions]

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