'help' target fails not finding a file, so follow up on a change[2] made
as a fix for main README[1].
1. d0113711a3 ("README: port to 21st century")
2. 751486b31f ("build: fix README.md reference after rename")
Signed-off-by: Tomasz Maciej Nowak <tmn505@gmail.com>
(cherry picked from commit 2d5f7035cf)
(cherry picked from commit e9911f10e4)
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
