Fix old pullAt example

lodash.js

@@ -2968,7 +2968,7 @@
      * @example
      *
      * var array = [5, 10, 15, 20];
-     * var evens = _.removeAt(array, [1, 3]);
+     * var evens = _.pullAt(array, [1, 3]);
      *
      * console.log(array);
      * // => [5, 15]