fix(docs): Corrects presumed typo, checks --> chunks

[foobarbecue]

I'm guessing "reusable checks of YAML" should read "reusable chunks of YAML."

Checklist:

• Either (a) I've created an enhancement proposal and discussed it with the community, (b) this is a bug fix, or (c) this is a chore.
• The title of the PR is (a) conventional, (b) states what changed, and (c) suffixes the related issues number. E.g. "fix(controller): Updates such and such. Fixes #1234".
• I have written unit and/or e2e tests for my change. PRs without these are unlike to be merged.
• Optional. I've added My organization is added to the README.
• I've signed the CLA and required builds are green.

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (master@af94352). Click here to learn what that means.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master    #2243   +/-   ##
=========================================
  Coverage          ?   11.82%           
=========================================
  Files             ?       52           
  Lines             ?    26382           
  Branches          ?        0           
=========================================
  Hits              ?     3119           
  Misses            ?    22862           
  Partials          ?      401

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