Pretty print roles on the console / was [Doc] add a `describe` example
When the roles are defined, we could document a way to describe the deployment. As it depends on the application deployed we could only document this to show that's easy to do.
╒══════════════════════╤════════════╤════════╕
│ Name │ Address │ Port │
╞══════════════════════╪════════════╪════════╡
│ Web portal │ 10.144.0.2 │ 3000 │
├──────────────────────┼────────────┼────────┤
│ Monitoring portal │ 10.144.0.2 │ 2000 │
├──────────────────────┼────────────┼────────┤
│ Benchmark portal │ 10.144.0.3 │ 8089 │
├──────────────────────┼────────────┼────────┤
│ Compilation machines │ 10.144.0.4 │ - │
╘══════════════════════╧════════════╧════════