[config-ref] add Block Storage schedulers

Also, rename compute schdulers to avoid confusion

Change-Id: I1b1f319a98e47af14061d4ca2b563882265acb37
Closes-Bug: #1408387

doc/config-reference/source/block-storage.rst

@@ -8,6 +8,7 @@ Block Storage service
    block-storage/block-storage-overview.rst
    block-storage/volume-drivers.rst
    block-storage/backup-drivers.rst
+   block-storage/schedulers.rst
    block-storage/logs.rst
    block-storage/fc-zoning.rst
    block-storage/nested-quota.rst

doc/config-reference/source/block-storage/schedulers.rst

@@ -0,0 +1,11 @@
+========================
+Block Storage schedulers
+========================
+
+Block Storage service uses the ``cinder-scheduler`` service
+to determine how to dispatch block storage requests.
+
+For more information, see `Cinder Scheduler Filters
+<http://docs.openstack.org/developer/cinder/scheduler-filters.html>`_
+and `Cinder Scheduler Weights
+<http://docs.openstack.org/developer/cinder/scheduler-weights.html>`_.

doc/config-reference/source/compute.rst

@@ -36,7 +36,7 @@ A list of config options based on different topics can be found below:
    compute/fibre-channel.rst
    compute/iscsi-offload.rst
    compute/hypervisors.rst
-   compute/scheduler.rst
+   compute/schedulers.rst
    compute/cells.rst
    compute/conductor.rst
    compute/logs.rst

doc/config-reference/source/compute/schedulers.rst

@@ -1,6 +1,6 @@
-==========
-Schedulers
-==========
+==================
+Compute schedulers
+==================
 
 Compute uses the ``nova-scheduler`` service to determine how to
 dispatch compute requests. For example, the ``nova-scheduler``