Update documentation for website submodule integration

- Add website to project structure documentation
- Include website build commands in management reference
- Document new submodule in architecture overview
- Update .gitmodules with branch specification for better submodule management

🤖 Generated with Claude Code

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

.gitmodules

@@ -10,3 +10,4 @@
 [submodule "modules/website"]
 	path = modules/website
 	url = http://tony:silverfrond[1392]@ironwood:3000/tony/chorus-website.git
+	branch = main

README.md

@@ -105,6 +105,11 @@ The `./chorus.sh` script provides unified management:
 ./chorus.sh build          # Build and push all images to registry
 ./chorus.sh pull           # Pull latest images from registry
 
+# Individual Component Builds
+./build-and-push.sh website        # Build and push website only
+./build-and-push.sh whoosh-backend # Build and push WHOOSH backend only
+./build-and-push.sh bzzz           # Build and push BZZZ coordinator only
+
 # Production Deployment
 ./chorus.sh deploy         # Deploy to Docker Swarm (production)
 ./chorus.sh undeploy       # Remove from Docker Swarm
@@ -151,7 +156,8 @@ chorus.services/
 └── 🧩 modules/                     # Git submodules
     ├── whoosh/                     # Orchestration platform
     ├── bzzz/                       # P2P coordination
-    └── slurp/                      # Context management (HCFS)
+    ├── slurp/                      # Context management (HCFS)
+    └── website/                    # Marketing website (Next.js)
 ```
 
 ## ⚙️ Configuration