Add resize vertical on the editor options

Author: ghiscoding

example/index.html

@@ -45,7 +45,7 @@ <h1>Angular Markdown Editor</h1>
 				<div class="col-md-12 col-lg-6">
 						<div class="form-group">
 								<label for="comment">Live Markdown with <a href="http://www.codingdrama.com/bootstrap-markdown/">Bootstrap-Markdown Editor</a>:</label>
-								<textarea name="content" class="content-box" markdown-editor="{'iconlibrary': 'fa', addExtraButtons: true}" rows="10" ng-model="markdown"></textarea>
+								<textarea name="content" class="content-box" markdown-editor="{'iconlibrary': 'fa', addExtraButtons: true, resize: 'vertical'}" rows="10" ng-model="markdown"></textarea>
 						</div>
 				</div>
 				<div class="col-md-12 col-lg-6 fill">

readme.md

@@ -7,7 +7,7 @@ I have put together a few libraries and tools to make a convenient "all in one"
 [Marked.js](https://github.com/chjj/marked) is awesome for markdown preview and [Highlight.js](https://highlightjs.org/) is a must for easy code viewing with colors highlighting. The [Bootstrap-Markdown](http://www.codingdrama.com/bootstrap-markdown/) is a really great and simplified WYSIWYG editor which was simply missing integration with AngularJS and so I created a Directive to handle that. For all of these great tools, we will use their AngularJS version for easier integration (for example `Marked.js` and `Angular-Marked`)
 
 ## Demo
-[Live Plunker demo](http://plnkr.co/AFxN7uiwkZlJ9OMZwXey) or take a look at the demo under the folder [example](https://github.com/ghiscoding/angular-markdown-editor/example).
+[Live Plunker demo](http://plnkr.co/AFxN7uiwkZlJ9OMZwXey) or take a look at the demo under the folder [example](https://github.com/ghiscoding/angular-markdown-editor/tree/master/example).
 
 ## How to use it?
 ### Installation