docs(input): fix typo on max attribute

Author: leesei

src/ng/directive/input.js

@@ -93,8 +93,8 @@ var inputType = {
    *
    * @param {string} ngModel Assignable angular expression to data-bind to.
    * @param {string=} name Property name of the form under which the control is published.
-   * @param {string=} min Sets the `min` validation error key if the value entered is less then `min`.
-   * @param {string=} max Sets the `max` validation error key if the value entered is greater then `min`.
+   * @param {string=} min Sets the `min` validation error key if the value entered is less than `min`.
+   * @param {string=} max Sets the `max` validation error key if the value entered is greater than `max`.
    * @param {string=} required Sets `required` validation error key if the value is not entered.
    * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to
    *    the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of