[PATCH] emacs: hello: promote '?' as the universal help key

[David Bremner]

Jani Nikula <jani at nikula.org> writes:

> Move the brief help text at the bottom of the hello screen to the
> notmuch-hello-mode help, and promote '?' as the universal help key
> across Notmuch. This unclutters the hello screen, and allows for a
> more verbose description in the mode help. Hopefully, this change is
> useful for both experienced and new users alike.
>
> While at it, improve the links to Notmuch and hello screen
> customization.

pushed.

d