fix image tag

Author: sudo87

source/_static/images/deployment planner diagram.png renamed to source/_static/images/deployment-planner-diagram.png

@@ -17,8 +17,6 @@
 Deployment Planners
 ======================
 
-Deployment Planners
-===================
 
 Deployment planners determine *how and where instances* are placed across clusters within a zone.  
 A planner builds and orders a *list of candidate clusters* based on a placement strategy such as available capacity, user dispersion, or pod concentration.  
@@ -95,4 +93,7 @@ In other words, *pod-level ordering happens before cluster selection*.
 When ``apply.allocation.algorithm.to.pods = false`` (the default in many deployments):  
 The allocation algorithm operates at the *cluster level* across the entire zone.  
 
-|deployment planner diagram.png|
+|deployment-planner-diagram.png|
+
+.. |deployment-planner-diagram.png| image:: /_static/images/deployment-planner-diagram.png
+   :alt: Deployment Planner Diagram

source/adminguide/deployment_planners.rst

@@ -67,8 +67,8 @@ Algorithm                      Description
 random		                   Selects a storage pool in the cluster randomly.
 firstfit		                   Selects the first available storage pool in the cluster.
 userdispersing	                Selects the storage pool running least instances for the account, aims to spread out the instances belonging to a single user account.
-userconcentratedpod_random     Selects the storage pool randomly aiming to keep all instances belonging to single user account in same pod.
-userconcentratedpod_firstfit   Selects the first suitable pool from a pod running most instances for the user.
+userconcentratedpod_random     Behaves same as random algorithm.
+userconcentratedpod_firstfit   Behaves same as firstfit algorithm.
 firstfitleastconsumed          Selects the first storage pool after sorting eligible pools by least allocated resources.
 ============================= ========================