Update README.md

Author: dotansimha

README.md

@@ -13,6 +13,7 @@ This directive gives you a Bootstrap Dropdown with the power of AngularJS direct
 - Grouping items by property.
 - Callback events.
 - Translation texts.
+- Scrollable list (useful for big lists)
 
 ## Demo
 http://dotansimha.github.io/angularjs-dropdown-multiselect/
@@ -22,6 +23,7 @@ http://dotansimha.github.io/angularjs-dropdown-multiselect/
 
 - Make sure to add the dependencies before the directive's js file. 
 - Note: Bootstrap JS file is not needed for the directive, it just uses the CSS file.
+- **Note: Make sure to add lodash.js to your project, and make sure you use the regulate version of Lodash (NOT lodash.underscore or lodash.compat**
 
 ## Install
 1. Download the files
@@ -30,10 +32,12 @@ http://dotansimha.github.io/angularjs-dropdown-multiselect/
 		Just run `bower install angularjs-dropdown-multiselect`
 	2. Manually:
 		You can download the `.js` file directly or clone this repository.
-2. Include the file in your app
+2. **Include lodash.js in your project.**
+	- `<script type="text/javascript" src="lodash.js"></script>`.
+3. Include the file in your app
 	- `<script type="text/javascript" src="angularjs-dropdown-multiselect.js"></script>`.
 	- You can also use the minfined version (`angularjs-dropdown-multiselect.min.js`).
-3. Include the module in angular (i.e. in `app.js`) - `angularjs-dropdown-multiselect`
+4. Include the module in angular (i.e. in `app.js`) - `angularjs-dropdown-multiselect`
 
 
 ## Usage and Documentation