docs(amplify-alpha): fix typo

[andyu17]

Issue # (if applicable)

None

Reason for this change

Fixed typos in code comments.

Checklist

• My code adheres to the CONTRIBUTING GUIDE and DESIGN GUIDELINES

---

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license

[aws-cdk-automation]

AWS CodeBuild CI Report

• CodeBuild project: AutoBuildv2Project1C6BFA3F-wQm2hXv2jqQv
• Commit ID: b6a9402
• Result: FAILED
• Build Logs (available for 30 days)

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 81.39%. Comparing base (53dc0d8) to head (b6a9402).

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #33009   +/-   ##
=======================================
  Coverage   81.39%   81.39%           
=======================================
  Files         225      225           
  Lines       13714    13714           
  Branches     2411     2411           
=======================================
  Hits        11162    11162           
  Misses       2277     2277           
  Partials      275      275           

Flag	Coverage Δ
suite.unit	81.39% <ø> (ø)

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Components	Coverage Δ
packages/aws-cdk	80.70% <ø> (ø)
packages/aws-cdk-lib/core	82.10% <ø> (ø)