docs: update root readme (#6)

Author: 43081j

README.md

@@ -5,6 +5,18 @@
 > [!WARNING]
 > This project is in very early stages and may break without notice. Have fun!
 
+## Capabilities
+
+- Check install commands for packages that have better-native or better-maintained alternatives
+- Analyze source files to identify imports that should be replaced with modern alternatives
+- Provide curated migration guides for transitioning away from outdated packages
+
+## Packages
+
+This monorepo contains the following packages:
+
+- **[@e18e/mcp](./packages/stdio/)** - The main stdio implementation of the e18e MCP server
+
 # License
 
 MIT