Insert a new object
Scroll down to the "Web" object section
Select the "Browser" plugin
Create some event i.e. on Touch of Sprite-Button
Create an action for that event using the browser object i.e. Browser goto URL
In the URL place your URL between quotes, and add a tag if you want.
And you should be set.
Image here, cant post images yet not sure how long it takes to build that rep: