docs/manual: fix scanpypi path typos

Signed-off-by: Danomi Manchego <danomimanchego123@gmail.com>
Reviewed-by: Yegor Yefremov <yegorslists@googlemail.com>
Acked-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

docs/manual/adding-packages-python.txt

@@ -178,7 +178,7 @@ your host.
 When at the root of your buildroot directory just do :
 
 -----------------------
-./support/script/scanpypi foo bar -o package
+./support/scripts/scanpypi foo bar -o package
 -----------------------
 
 This will generate packages +python-foo+ and +python-bar+ in the package
@@ -198,7 +198,7 @@ If your Buildroot package is not in the official Buildroot tree but in
 a br2-external tree, use the -o flag as follows:
 
 -----------------------
-./support/script/scanpypi foo bar -o other_package_dir
+./support/scripts/scanpypi foo bar -o other_package_dir
 -----------------------
 
 This will generate packages +python-foo+ and +python-bar+ in the
@@ -207,7 +207,7 @@ This will generate packages +python-foo+ and +python-bar+ in the
 Option +-h+ will list the available options:
 
 -----------------------
-./support/script/scanpypi -h
+./support/scripts/scanpypi -h
 -----------------------
 
 [[python-package-cffi-backend]]