Docs: Fix typos in interactivity API reference

[Soean]

What?

Improves the Interactivity API reference docs

• Adds a missing comma
• Fixes a typo rendedered => rendered

[github-actions]

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Co-authored-by: Soean <soean@git.wordpress.org>
Co-authored-by: t-hamano <wildworks@git.wordpress.org>

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[github-actions]

Flaky tests detected in 690132b.
Some tests passed with failed attempts. The failures may not be related to this commit but are still reported for visibility. See the documentation for more information.

🔍 Workflow run URL: https://github.com/WordPress/gutenberg/actions/runs/8740088538
📝 Reported issues:

• [Flaky Test] Redirection after template creation #60678 in /test/e2e/specs/site-editor/site-editor-url-navigation.spec.js

[t-hamano]

LGTM 🚀