doc: fix the build of placement-groups.rst

add a reference target of "mapping pgs to osds"

Signed-off-by: Kefu Chai <kchai@redhat.com>

diff --git a/doc/rados/operations/placement-groups.rst b/doc/rados/operations/placement-groups.rst
index 4fb83bc961677d710f31d2f4d4949ac41fc60851..b408f9c8bd9744edeace4383ede3f9145ab24513 100644 (file)
--- a/doc/rados/operations/placement-groups.rst
+++ b/doc/rados/operations/placement-groups.rst
@@ -430,3 +430,4 @@ entirely. To mark the "unfound" objects as "lost", execute the following::
 
 
 .. _Create a Pool: ../pools#createpool
+.. _Mapping PGs to OSDs: ../../../architecture#mapping-pgs-to-osds