Merge pull request #1833 from nereocystis/admin-node-doc

doc: mention admin-node in common documentation

diff --cc doc/start/quick-ceph-deploy.rst
index ef275ba1d3f03e8cdc5858b73c265500bc5749ae,b30499b7a7dae5db9c92ca8525d26e487ea07032..10c77e4d7f8c6b611a05161ebb4f4d5094b11d3d
--- 1/doc/start/quick-ceph-deploy.rst
--- 2/doc/start/quick-ceph-deploy.rst
+++ b/doc/start/quick-ceph-deploy.rst
@@@ -152,12 -152,8 +152,8 @@@ configuration file, perform the followi
  
     For example:: 
  
 -      ceph-deploy admin node1 node2 node3 admin-node
 +      ceph-deploy admin admin-node node1 node2 node3
  
-    **Note:** Since you are using ``ceph-deploy`` to talk to the
-    local host (admin-node), your host must be reachable by its hostname 
-    (e.g., you can modify ``/etc/hosts`` if necessary). 
-    
  #. Ensure that you have the correct permissions for the 
     ``ceph.client.admin.keyring``. ::