The content of this page fits lib the best, which also reflects the
location of the rmodule runtime code in the src tree. This also fixes a
"document isn't included in any toctree" warning from Sphinx since it is
now added to the lib/index.md toctree.
Change-Id: I86545f4c1a7e1b3ccefa4f6085e764536f33f29c
Signed-off-by: Nicholas Chin <nic.c3.14@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/84240
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
