'help' target fails not finding a file, so follow up on a change[2] made
as a fix for main README[1].
1. d0113711a31f ("README: port to 21st century")
2. 751486b31fd9 ("build: fix README.md reference after rename")
Signed-off-by: Tomasz Maciej Nowak <tmn505@gmail.com>
(cherry picked from commit 2d5f7035cf45801158bed6f5d0ac0de0002c1810)
(cherry picked from commit e9911f10e482f3174f745a36c0c9fd7964758caf)
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
