This commit adds a manual for axfer(1). This command is an entry point
to supported subcommand.
I note that axfer(1) has renewed option system against aplay(1). The
command get positional two options for subcommand and direction. In
short:
$ axfer transfer capture|playback [options for transfer subcommand]
$ axfer list capture|playback [options for list subcommand]
$ axfer version
$ axfer help
Manuals to subcommands are added later separately.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
