Add transforms back in, add redirects

_im-plugin/index-transforms/index.md

@@ -1,9 +1,9 @@
 ---
 layout: default
 title: Index transforms
-nav_order: 40
-parent: Index management
+nav_order: 20
 has_children: true
+redirect_from: /docs/im/index-transforms/
 has_toc: false
 ---
 

_im-plugin/index-transforms/transforms-apis.md

@@ -3,7 +3,6 @@ layout: default
 title: Transforms APIs
 nav_order: 45
 parent: Index transforms
-grand_parent: Index management
 has_toc: true
 ---
 

_im-plugin/ism/index.md

@@ -3,7 +3,9 @@ layout: default
 title: Index State Management
 nav_order: 3
 has_children: true
-redirect_from: /docs/ism/
+redirect_from:
+  - /docs/im/ism/
+  - /docs/ism/
 has_toc: false
 ---