Update demo URL

PowerKiKi · PowerKiKi · commit afbb66197a96 · 2016-01-20T11:26:54.000+09:00
diff --git a/README.md b/README.md
@@ -10,5 +10,5 @@ Due to popular demand. This is WIP so expect breaking changes!
 
 ## Usage
 
-Check the [demo](http://angular-ui.github.io/ui-slider/demo/demo.html) for an example on how it works.
+Check the [demo](https://htmlpreview.github.io/?https://github.com/angular-ui/ui-slider/master/demo/index.html) for an example on how it works.
 

Original file line number	Diff line number	Diff line change
`@@ -10,5 +10,5 @@ Due to popular demand. This is WIP so expect breaking changes!`
`10`	`10`
`11`	`11`	`## Usage`
`12`	`12`
`13`		`-Check the [demo](http://angular-ui.github.io/ui-slider/demo/demo.html) for an example on how it works.`
	`13`	`+Check the [demo](https://htmlpreview.github.io/?https://github.com/angular-ui/ui-slider/master/demo/index.html) for an example on how it works.`
`14`	`14`