Add breaking changes

Author: aetter

docs/upgrade/1-10-1.md

@@ -2,7 +2,7 @@
 layout: default
 title: Upgrade to 1.10.1
 parent: Upgrade
-nav_order: 3
+nav_order: 4
 ---
 
 # Upgrade to 1.10.1 (Kibana)

docs/upgrade/1-11.0.md renamed to docs/upgrade/1-11-0.md

@@ -2,7 +2,7 @@
 layout: default
 title: Upgrade to 1.11.0
 parent: Upgrade
-nav_order: 2
+nav_order: 3
 ---
 
 # Upgrade to 1.11.0 (Kibana)

docs/upgrade/1-13-0.md

@@ -0,0 +1,12 @@
+---
+layout: default
+title: Upgrade to 1.13.0
+parent: Upgrade
+nav_order: 2
+---
+
+# Upgrade to 1.13.0
+
+- Open Distro for Elasticsearch 1.13.0 renames most plugins. For the latest plugin names, see [Standalone Elasticsearch plugin install](../../install/plugins/) and [Standalone Kibana plugin install](../../kibana/plugins/).
+
+- Index State Management no longer supports the `index.opendistro.index_state_management.policy_id` setting for indices. Instead, add an `ism_template` to the policy. For more information, see [Index State Management](../../ism/).

docs/upgrade/1-8-0.md

@@ -2,7 +2,7 @@
 layout: default
 title: Upgrade to 1.8.0
 parent: Upgrade
-nav_order: 4
+nav_order: 5
 ---
 
 # Upgrade to 1.8.0