memory-hotplug.rst: fix wrong /sys/module/memory_hotplug/parameters/ path

We accidentially added a superfluous "s".

Link: https://lkml.kernel.org/r/[e-mail]
Fixes: ac3332c44767 ("memory-hotplug.rst: complete admin-guide overhaul")
Signed-off-by: David Hildenbrand <[e-mail]>
Acked-by: Mike Rapoport <[e-mail]>
Cc: Jonathan Corbet <[e-mail]>
Cc: Michal Hocko <[e-mail]>
Cc: Oscar Salvador <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
Signed-off-by: Linus Torvalds <[e-mail]>

Documentation/admin-guide/mm/memory-hotplug.rst

···
 
 and they can be observed (and some even modified at runtime) via::
 
-	/sys/modules/memory_hotplug/parameters/
+	/sys/module/memory_hotplug/parameters/
 
 The following module parameters are currently defined: