Show the supported Tendermint version(s)

def run_tendermint_version(args):
    """Show the supported Tendermint version(s)"""
    supported_tm_ver = {
        'description': 'BigchainDB supports the following Tendermint version(s)',
        'tendermint': __tm_supported_versions__,
    }
    print(json.dumps(supported_tm_ver, indent=4, sort_keys=True))