docs: restore Community Tools section with beads.el

Adds back third-party tools removed in succinct README PR.
Includes beads.el Emacs package (closes #610).

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

README.md

@@ -60,6 +60,15 @@ Beads supports hierarchical IDs for epics:
 
 **Requirements:** Linux (glibc 2.32+), macOS, or Windows.
 
+## 🌐 Community Tools
+
+- **[beads_viewer](https://github.com/Dicklesworthstone/beads_viewer)** - Keyboard-driven terminal UI with kanban board, insights panel, and graph view. Built by [@Dicklesworthstone](https://github.com/Dicklesworthstone).
+- **[beads.el](https://codeberg.org/ctietze/beads.el)** - Emacs UI to browse, edit, and manage beads. Built by [@ctietze](https://codeberg.org/ctietze).
+- **[beads-ui](https://github.com/mantoni/beads-ui)** - Local web interface with live updates and kanban board. `npx beads-ui start`. Built by [@mantoni](https://github.com/mantoni).
+- **[bdui](https://github.com/assimelha/bdui)** - Real-time terminal UI with tree view, dependency graph, and vim-style navigation. Built by [@assimelha](https://github.com/assimelha).
+- **[perles](https://github.com/zjrosen/perles)** - Terminal UI with BQL (Beads Query Language) and multi-view kanban. Built by [@zjrosen](https://github.com/zjrosen).
+- **[vscode-beads](https://marketplace.visualstudio.com/items?itemName=planet57.vscode-beads)** - VS Code extension with issues panel and daemon management. Built by [@jdillon](https://github.com/jdillon).
+
 ## 📝 Documentation
 
 * [Installing](docs/INSTALLING.md) | [Agent Workflow](AGENT_INSTRUCTIONS.md) | [Sync Branch Mode](docs/PROTECTED_BRANCHES.md) | [FAQ](docs/FAQ.md)