feat(deploy): add Railway deployment configuration and setup instructions

deploy/railway/README.md

@@ -0,0 +1,19 @@
+# Railway Deployment
+
+## Quick Deploy
+[![Deploy on Railway](https://railway.app/button.svg)](https://railway.app/template/crawl4ai)
+
+## Manual Setup
+1. Fork this repository
+2. Create a new Railway project 
+3. Configure environment variables:
+   - `INSTALL_TYPE`: basic or all
+   - `ENABLE_GPU`: true/false
+4. Deploy!
+
+## Configuration
+See `railway.toml` for:
+- Memory limits
+- Health checks
+- Restart policies
+- Scaling options