Merge pull request #15941 from oritwas/wip-rgw-dynamic-resharding-doc

rgw: Add dynamic resharding documentation

Reviewed-By: Abhishek Lekshmanan <abhishek@suse.com>
Reviewed-By: Alfredo Deza <adeza@redhat.com>

diff --cc doc/radosgw/index.rst
index 657a6f9b92bafe3c324e828ae99a9c36e102c9ee,48a5f6c24f09d6f34f32dc4ccceaf3bfca652fcc..883ad621f988e4c3386e4623b78577da14c6132a
--- 1/doc/radosgw/index.rst
--- 2/doc/radosgw/index.rst
+++ b/doc/radosgw/index.rst
@@@ -50,9 -49,9 +50,10 @@@ you may write data with one API and ret
     OpenStack Barbican Integration <barbican>
     Multi-tenancy <multitenancy>
     Compression <compression>
 +   LDAP Authentication <ldap-auth>
     Server-Side Encryption <encryption>
     Bucket Policy <bucketpolicy>
+    Dynamic bucket index resharding <dynamicresharding>
     Data Layout in RADOS <layout>
     troubleshooting
     Manpage radosgw <../../man/8/radosgw>