We should leverage the 'click' functionality to get autocomplete working (https://click.palletsprojects.com/en/8.0.x/shell-completion/#) for `./Breeze2` command. The commands should come from the `./dev/breeze/src/breeze.py`.

This might require some hackery approach and might prove to be impossible or difficult, because it is based on entrypotnts and the fact that we want to use `Breeze2` command to run Airflow might not be well recognized by shell autocomplete. 

But I believe with proper naming of the commands/entrypoints we should be able to achieve it.

The result of this should be short instruction on how to make autocomplete for Breeze2 works (possibly with links to the documentation from click).

dev/breeze/src/airflow_breeze/breeze.py
"""Prints version of breeze.py."""
    console.print(ASCIIART, style=ASCIIART_STYLE)
    console.print(f"\n[green]{NAME} version: {VERSION}[/]\n")
@option_verbose
@main.command()
def shell(verbose: bool):
    """Enters breeze.py environment. this is the default command use when no other is selected."""
    if verbose:
        console.print("\n[green]Welcome to breeze.py[/]\n")
        console.print(f"\n[green]Root of Airflow Sources = {__AIRFLOW_SOURCES_ROOT}[/]\n")
    console.print(ASCIIART, style=ASCIIART_STYLE)
    raise ClickException("\nPlease implement entering breeze.py\n")
@option_verbose
@main.command(name='build-ci-image')
@click.option(
    '--additional-extras',
    help='This installs additional extra package while installing airflow in the image.',
)
@click.option('-p', '--python', help='Choose your python version')
@click.option(
    '--additional-dev-apt-deps', help='Additional apt dev dependencies to use when building the images.'
)
@click.option(
    '--additional-runtime-apt-deps',
    help='Additional apt runtime dependencies to use when building the images.',
)
@click.option(
    '--additional-python-deps', help='Additional python dependencies to use when building the images.'
)