Removing more instances of state

Author: aetter

docs/im/api.md

@@ -7,7 +7,7 @@ nav_order: 5
 
 # IM API
 
-Use the index state management operations to programmatically work with policies and managed indices.
+Use the index management operations to programmatically work with policies and managed indices.
 
 ---
 

docs/im/policies.md

@@ -2,7 +2,7 @@
 layout: default
 title: Policies
 nav_order: 1
-parent: Index State Management
+parent: Index Management
 has_children: false
 ---
 

docs/install/plugins.md

@@ -165,7 +165,7 @@ sudo bin/elasticsearch-plugin install https://d3g5vo6xdbdb9a.cloudfront.net/down
 ```
 
 
-### Index State Management
+### Index Management
 
 ```bash
 sudo bin/elasticsearch-plugin install https://d3g5vo6xdbdb9a.cloudfront.net/downloads/elasticsearch-plugins/opendistro-index-management/opendistro_index_management-1.3.0.1.zip