docs: add 3D & game engine integrations section to README

[cs50victor]

As video generation and world models advance, shared generative experiences in 3D environments will become
increasingly relevant. This section provides a starting point for developers exploring interactive 3D use
cases with the SDK."

[coderabbitai]

📝 Walkthrough

Walkthrough

Updated README.md to add a new "3D & Game Engine Integrations" documentation section, introducing bevy_streaming for streaming Bevy engine output to LiveKit with low-latency and bidirectional input support.

Changes

Cohort / File(s)	Summary
Documentation Update README.md	Added new "3D & Game Engine Integrations" section with bevy_streaming link and description for streaming Bevy engine output to LiveKit (+4 lines)

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Poem

🐰 A new section hops into view,
Bevy streams through LiveKit true,
Games and graphics, low-latency bound,
With bidirectional input sound! ✨

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The pull request title accurately describes the main change: adding a new documentation section about 3D & game engine integrations to the README.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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📜 Recent review details

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 2975ff4 and 4c0cd86.

📒 Files selected for processing (1)

• README.md

⏰ Context from checks skipped due to timeout of 90000ms. You can increase the timeout in your CodeRabbit configuration to a maximum of 15 minutes (900000ms). (3)

• GitHub Check: Test (x86_64-pc-windows-msvc)
• GitHub Check: Test (x86_64-unknown-linux-gnu)
• GitHub Check: Test (x86_64-apple-darwin)

🔇 Additional comments (2)

README.md (2)

172-172: LGTM! Well-placed documentation section.

The section header is clear, properly formatted, and logically placed after the Examples section.

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174-175: No issues found. The repository is active, accessible, and the description accurately reflects the project's implementation with GStreamer and livekitwebrtcsink for LiveKit streaming.

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