Fix documentation typo.

Former-commit-id: 85e89c893d358d196a3f0f04b95acb10bbca2771

doc/README.md

@@ -793,7 +793,7 @@ Iterates over an `object`'s enumerable own properties, executing the `callback`
 _.forOwn({ '0': 'zero', '1': 'one', 'length': 2 }, function(num, key) {
   alert(key);
 });
-// => alerts '1', '2', and 'length' (order is not guaranteed)
+// => alerts '0', '1', and 'length' (order is not guaranteed)
 ~~~
 
 * * *
@@ -1259,7 +1259,7 @@ _.isFunction(''.concat);
 ### <a id="_isnanvalue"></a>`_.isNaN(value)`
 <a href="#_isnanvalue">#</a> [&#x24C8;](https://github.com/bestiejs/lodash/blob/master/lodash.js#L2688 "View in source") [&#x24C9;][1]
 
-Checks if a `value` is `NaN`. Note: this is not the same as native `isNaN`, which will return true for `undefined` and other values. See http://es5.github.com/#x15.1.2.4.
+Checks if a `value` is `NaN`. Note: This is not the same as native `isNaN`, which will return true for `undefined` and other values. See http://es5.github.com/#x15.1.2.4.
 
 #### Arguments
 1. `value` *(Mixed)*: The value to check.

lodash.js

@@ -2271,7 +2271,7 @@
    * _.forOwn({ '0': 'zero', '1': 'one', 'length': 2 }, function(num, key) {
    *   alert(key);
    * });
-   * // => alerts '1', '2', and 'length' (order is not guaranteed)
+   * // => alerts '0', '1', and 'length' (order is not guaranteed)
    */
   var forOwn = createIterator(baseIteratorOptions, forEachIteratorOptions, forOwnIteratorOptions);
 
@@ -2663,7 +2663,7 @@
 
   /**
    * Checks if a `value` is `NaN`.
-   * Note: this is not the same as native `isNaN`, which will return true for
+   * Note: This is not the same as native `isNaN`, which will return true for
    * `undefined` and other values. See http://es5.github.com/#x15.1.2.4.
    *
    * @static