docs: add Try It in Google Colab section to README

[polaz]

Adds a table with Open in Colab badges for all 4 demo notebooks, with a note to start from 00 and about the ~8 min first-run build time.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: ASSERTIVE

Plan: Pro

Run ID: 85d9161f-f7db-435a-9fda-89cc9887190f

📥 Commits

Reviewing files that changed from the base of the PR and between dbbd351 and 5022676.

📒 Files selected for processing (1)

• README.md

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📝 Walkthrough

Summary by CodeRabbit

• Documentation
  • Added "Try It in Google Colab" section with embedded notebook links to the README
  • Included guidance to start with notebook 00 and engine installation timing information

Walkthrough

README.md enhanced with a "Try It in Google Colab" section containing embedded Colab notebook links for demos (notebooks 00–03), instructions for running the embedded engine in-browser, and timing notes for the embedded install.

Changes

Documentation: Colab Access

Layer / File(s)	Summary
Getting Started Documentation README.md	New "Try It in Google Colab" section (lines 20–33) added with embedded Colab links for notebooks 00–03, usage instructions, and embedded engine install timing guidance.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately describes the main change: adding a 'Try It in Google Colab' section to the README documentation.
Description check	✅ Passed	The description is directly related to the changeset, providing details about the Colab section, badges, notebooks, and build time note.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch docs/#62-colab-readme

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud