README.md.addition

## Multi-Instance Setup with Leader/Follower Pattern

For cluster setups with shared workspace volume, you can configure containers with distinct roles:

- **LEADER**: Pushes changes from local directories to workspace
- **FOLLOWER**: Pulls changes from workspace to local directories

### Configuration

Set the `COMFY_DEV_ROLE` environment variable to `LEADER` or `FOLLOWER`:

```bash
# Example
COMFY_DEV_ROLE=LEADER
```

### Docker Compose Example

See `docker-compose.example.yml` for a complete multi-instance setup:

```bash
# Start the leader/follower setup
docker compose -f docker-compose.example.yml up -d
```

### Behavior

- Leader initializes the shared workspace and performs initial setup
- Followers wait for leader to complete critical steps before proceeding
- Leader pushes local changes to workspace
- Followers pull workspace changes to local directories
- This prevents race conditions when multiple instances share the same volume