provided link to live demo article

the article demonstrates the easiest possible working code that uses backbone, botstrap and backbone.bootstrap-modal. I think that the current docs were missing an example code - and here it is.
Merge pull request #42 from tkoomzaaskz/patch-1

provided link to live demo article
Closes #21.
Merge pull request #47 from cthielen/master

Closes #21.
merged in changes from powmedia