document treePath in api.md

docs/api.md

@@ -180,6 +180,9 @@ Constructs a new JSONEditor.
      - Can return an object `{startFrom: number, options: string[]}`. Here `startFrom` determines the start character from where the existing text will be replaced. `startFrom` is `0` by default, replacing the whole text.
      - Can return a `Promise` resolving one of the return types above to support asynchronously retrieving a list with options.
 
+- `{boolean} treePath`
+
+  Adds a tree path control to the menu - this control visualize the current position on the tree structure as well as allows breadcrumbs navigation. False by default. Only applicable when `mode` is 'tree', 'form' or 'view'.
 
 ### Methods
 

src/js/util.js

@@ -794,7 +794,7 @@ exports.textDiff = function textDiff(oldText, newText) {
 /**
  * Return an object with the selection range or cursor position (if both have the same value)
  * Support also old browsers (IE8-)
- * Source: http://ourcodeworld.com/articles/read/282/how-to-get-the-current-cursor-position-and-selection-within-a-text-input-or-textarea-in-javascript * 
+ * Source: http://ourcodeworld.com/articles/read/282/how-to-get-the-current-cursor-position-and-selection-within-a-text-input-or-textarea-in-javascript
  * @param {DOMElement} el A dom element of a textarea or input text.
  * @return {Object} reference Object with 2 properties (start and end) with the identifier of the location of the cursor and selected text.
  **/