docs: add missing hugo-bun-node to root README

Author: gatezh

README.md

@@ -10,6 +10,7 @@ This repository contains Dockerfiles for custom Docker images hosted on GitHub C
 - **[bun](./bun/README.md)** - Bun development container
 - **[claude-bun](./claude-bun/README.md)** - Claude Code development container with firewall sandbox
 - **[hugo-bun](./hugo-bun/README.md)** - Hugo Extended + Bun development container
+- **[hugo-bun-node](./hugo-bun-node/README.md)** - Hugo Extended + Bun + Node.js development container (Cloudflare Workers)
 
 ### Standalone Docker Images
 
@@ -96,6 +97,18 @@ Hugo development container with Bun runtime.
 }
 ```
 
+### hugo-bun-node
+
+Hugo development container with Bun runtime and Node.js LTS for Cloudflare Workers support.
+
+**Usage in other projects:**
+
+```json
+{
+  "image": "ghcr.io/<username>/devcontainers/hugo-bun-node:latest"
+}
+```
+
 ### ralphex-fe
 
 Standalone Docker image based on ralphex with Bun 1.3.9, Hugo Extended 0.155.3, and Chromium for modern JavaScript/TypeScript development, static site generation, and end-to-end testing.