Several people have suggested that the "by Bram" byline is misleading,
it implies that Bram is actively involved with the project. Up to now we
left it as an homage.
Bram agreed that it is misleading, and suggested a mention somewhere
other than the intro.
Also move introduction to Nvim and topic overview to nvim.txt.
Reviewed-by: Michael Reed <Pyrohh@users.noreply.github.com>
Reviewed-by: Justin M. Keyes <justinkz@gmail.com>
