doc: fix grammar in hello.x (thanks, Logan!)
diff --git a/man/hello.x b/man/hello.x line changes: +1/-1 index a80206b..37b5c18 --- a/man/hello.x +++ b/man/hello.x
@@ -5,4 +5,4 @@ See .UR https://git.savannah.gnu.org/cgit/hello.git/tree/man/hello.x man/hello.x .UE -how to add additional information to a manual page. +for how to add additional information to a manual page.