chore(readme): Update installation notes

Note that the carousel requires ngTouch for swiping.

Closes #5499
Closes #5500

README.md

@@ -36,7 +36,9 @@ Are you interested in Angular 2? We are on our way! Check out [ng-bootstrap](htt
 # Installation
 
 Installation is easy as UI Bootstrap has minimal dependencies - only the AngularJS and Twitter Bootstrap's CSS are required.
-Note: Since version 0.13.0, UI Bootstrap depends on [ngAnimate](https://docs.angularjs.org/api/ngAnimate) for transitions and animations, such as the accordion, carousel, etc. Include `ngAnimate` in the module dependencies for your app in order to enable animation.
+*Notes:* 
+* Since version 0.13.0, UI Bootstrap depends on [ngAnimate](https://docs.angularjs.org/api/ngAnimate) for transitions and animations, such as the accordion, carousel, etc. Include `ngAnimate` in the module dependencies for your app in order to enable animation.
+* UI Bootstrap depends on [ngTouch](https://docs.angularjs.org/api/ngTouch) for swipe actions. Include `ngTouch` in the module dependencies for your app in order to enable swiping.
 
 ## Angular Requirements
 * UI Bootstrap 1.0 and higher _requires_ Angular 1.4.x or higher and it has been tested with Angular 1.4.8.