Docs: Minor.

src/conversion/mapper.js

@@ -21,7 +21,10 @@ import mix from '@ckeditor/ckeditor5-utils/src/mix';
  * Maps elements, positions and markers between {@link module:engine/view/document~Document the view} and
  * {@link module:engine/model/model the model}.
  *
- * Mapper use bound elements to find corresponding elements and positions, so, to get proper results,
+ * The instance of the Mapper used for the editing pipeline is available in
+ * {@link module:engine/controller/editingcontroller~EditingController#mapper `editor.editing.mapper`}.
+ *
+ * Mapper uses bound elements to find corresponding elements and positions, so, to get proper results,
  * all model elements should be {@link module:engine/conversion/mapper~Mapper#bindElements bound}.
  *
  * To map complex model to/from view relations, you may provide custom callbacks for

src/view/domconverter.js

@@ -29,6 +29,8 @@ import { isElement } from 'lodash-es';
  * DomConverter is a set of tools to do transformations between DOM nodes and view nodes. It also handles
  * {@link module:engine/view/domconverter~DomConverter#bindElements binding} these nodes.
  *
+ * The instance of DOMConverter is available in {@link module:engine/view/view~View#domConverter `editor.editing.view.domConverter`}.
+ *
  * DomConverter does not check which nodes should be rendered (use {@link module:engine/view/renderer~Renderer}), does not keep a
  * state of a tree nor keeps synchronization between tree view and DOM tree (use {@link module:engine/view/document~Document}).
  *