rename history transforms to on-history

lib/transforms/index.js

@@ -126,6 +126,16 @@ import {
   moveToRangeOf,
 } from './on-selection'
 
+/**
+ * On history.
+ */
+
+import {
+  redo,
+  save,
+  undo,
+} from './on-history'
+
 /**
  * Normalize.
  */
@@ -135,16 +145,6 @@ import {
   normalizeSelection,
 } from './normalize'
 
-/**
- * History.
- */
-
-import {
-  redo,
-  save,
-  undo,
-} from './history'
-
 /**
  * Export.
  *
@@ -268,13 +268,6 @@ export default {
   moveToOffsets,
   moveToRangeOf,
 
-  /**
-   * Normalize.
-   */
-
-  normalizeDocument,
-  normalizeSelection,
-
   /**
    * History.
    */
@@ -283,4 +276,11 @@ export default {
   save,
   undo,
 
+  /**
+   * Normalize.
+   */
+
+  normalizeDocument,
+  normalizeSelection,
+
 }