docs: add development container setup instructions (#29)

- Add PAT requirements
- Add devcontainer CLI commands
- Add VS Code instructions
- Add troubleshooting tips

Part of #29

README.md

@@ -41,3 +41,39 @@ The MCP server will automatically start when you open the project in a devcontai
 2. Follow the prompts to authenticate with your GitHub account
 
 ### Database Setup
+
+## Development Container Setup
+
+### GitHub Personal Access Token
+Before using the development container, you'll need a GitHub Personal Access Token (PAT) with the following permissions:
+- `repo` (Full control of private repositories)
+- `read:packages` (Download container images)
+- `write:packages` (Upload container images)
+- `delete:packages` (Optional: manage container versions)
+- `workflow` (GitHub Actions integration)
+
+### Using the Development Container
+
+#### Command Line Interface
+You can build and start the development container using the devcontainer CLI:
+
+```bash
+# Build the container
+devcontainer build .
+
+# Start the container (with post-create command)
+devcontainer up --workspace-folder .
+
+# Start the container (skip post-create)
+devcontainer up --workspace-folder . --skip-post-create
+```
+
+#### VS Code
+1. Open the project in VS Code
+2. Press F1 and run "Dev Containers: Rebuild and Reopen in Container"
+   - To skip post-create steps: Press F1 and run "Dev Containers: Rebuild Container Without Cache"
+
+### Troubleshooting
+- If GitHub authentication fails, ensure your PAT is correctly set in `.devcontainer/.env`
+- For network issues, try rebuilding the container with `--no-cache` option
+- Check the VS Code "Dev Containers" output panel for detailed logs