docs/vm: move numa_memory_policy.rst to Documentation/admin-guide/mm

The document describes userspace API and as such it belongs to
Documentation/admin-guide/mm

Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
diff --git a/Documentation/vm/numa.rst b/Documentation/vm/numa.rst
index aada84b..185d8a5 100644
--- a/Documentation/vm/numa.rst
+++ b/Documentation/vm/numa.rst
@@ -110,7 +110,7 @@
 such as taskset(1) and numactl(1), and program interfaces such as
 sched_setaffinity(2).  Further, one can modify the kernel's default local
 allocation behavior using Linux NUMA memory policy.
-[see Documentation/vm/numa_memory_policy.rst.]
+[see Documentation/admin-guide/mm/numa_memory_policy.rst.]
 
 System administrators can restrict the CPUs and nodes' memories that a non-
 privileged user can specify in the scheduling or NUMA commands and functions