Expand Docs on Using XLRs for Validations

[KetanReddy]

Closes #465

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Release Notes

Docs: Expanded content validation Docs

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 85.82%. Comparing base (2b9bd35) to head (c78d21c).
⚠️ Report is 4 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #784      +/-   ##
==========================================
- Coverage   85.83%   85.82%   -0.01%     
==========================================
  Files         505      505              
  Lines       22794    22794              
  Branches     2656     2656              
==========================================
- Hits        19565    19564       -1     
- Misses       2900     2901       +1     
  Partials      329      329              

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[kharrop]

/docs

[intuit-svc]

Docs Preview

A preview of your PR docs was deployed by CircleCI #30621 on Wed, 28 Jan 2026 23:12:22 GMT

📖 Docs (View site)

• guides/validating-content
• xlr/usage/export
• xlr/usage/sdk