docs: Add Library feature description to README

[jfrench9]

Summary

This PR adds a description of the Library feature to the project's README, improving documentation coverage for the application's key features.

Changes

• README.md: Added a new line describing the Library feature, ensuring that users and contributors have visibility into this functionality directly from the project's main documentation.

Key UI/UX Improvements

• No direct UI/UX changes — this is a documentation-only update.
• Improves the developer/contributor experience by providing clearer context about the Library feature within the README.

Breaking Changes

None. This is a non-functional, documentation-only change.

Testing Notes for Reviewers

• Verify the new line in README.md renders correctly in GitHub's Markdown preview.
• Confirm the description accurately reflects the Library feature's current functionality.
• Check for any formatting inconsistencies with the surrounding content (heading levels, bullet style, spacing, etc.).

Browser Compatibility Considerations

Not applicable — this change only affects the README documentation file and has no runtime impact on the application.

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Note: The branch name (chore/update-readmes) and commit message suggest this is a documentation chore. The PR type is labeled as "feature," which may warrant reconsideration — a docs or chore label would be more semantically accurate for this change.

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🤖 Generated with Claude Code

Branch Info:

• Source: chore/update-readmes
• Target: main
• Type: feature

Co-Authored-By: Claude noreply@anthropic.com