Update to Angular 1.1.4

lib/angular/docs/partials/api/ng.directive:ngModel.html

@@ -2,7 +2,7 @@
 <span class="hint">(directive in module <code ng:non-bindable="">ng</code>
 )</span>
 </h1>
-<div><h2 id="Description">Description</h2>
+<div><a href="http://github.com/angular/angular.js/edit/master/src/ng/directive/input.js" class="improve-docs btn btn-primary">Improve this doc</a><h2 id="Description">Description</h2>
 <div class="description"><p>Is directive that tells Angular to do two-way data binding. It works together with <code>input</code>,
 <code>select</code>, <code>textarea</code>. You can easily write your own directives to use <code>ngModel</code> as well.</p>