Add demo video and article links to README (#206)

* docs: add demo video and article links to README

Add tweet screenshot for the video demo prominently after the intro,
and link to the full article thread. Replaces the TODO placeholder.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* docs: use article screenshot for README article link

Replace text-only article link with clickable screenshot showing
the article title, preview image, and engagement stats.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* docs: replace demo video screenshot with higher quality version

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

README.md

@@ -17,7 +17,27 @@ Agent Orchestrator manages fleets of AI coding agents working in parallel on you
 
 **Agent-agnostic** (Claude Code, Codex, Aider) · **Runtime-agnostic** (tmux, Docker) · **Tracker-agnostic** (GitHub, Linear)
 
-<!-- TODO: Add dashboard screenshot or terminal GIF showing 10+ sessions with attention zones -->
+<div align="center">
+
+### See it in action
+
+<a href="https://x.com/agent_wrapper/status/2026329204405723180">
+  <img src="docs/assets/demo-video-tweet.png" alt="Agent Orchestrator demo — AI agents building their own orchestrator" width="560">
+</a>
+
+<sub>512 likes · 48 replies · <a href="https://x.com/agent_wrapper/status/2026329204405723180">Watch the demo on X</a></sub>
+
+</div>
+
+<div align="center">
+
+<a href="https://x.com/agent_wrapper/status/2025986105485733945">
+  <img src="docs/assets/article-tweet.png" alt="The Self-Improving AI System That Built Itself" width="560">
+</a>
+
+<sub>1.3K likes · 41 replies · <a href="https://x.com/agent_wrapper/status/2025986105485733945">Read the full article on X</a></sub>
+
+</div>
 
 ## Quick Start