input: Documentation: update related file names in ff.rst

Change other related documentation file names from .txt to .rst
and be more explicit about their paths/locations.

Signed-off-by: Randy Dunlap <[email protected]>
Cc: Dmitry Torokhov <[email protected]>
Cc: [email protected]
Cc: Jonathan Corbet <[email protected]>
Cc: [email protected]
Cc: Johann Deneux <[email protected]>
Cc: Anssi Hannula <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jonathan Corbet <[email protected]>

0 files changed, 0 insertions, 0 deletions