Add a link to the example source in the readme.

[evolross]

Add a link to the source of your example project in your Readme:

https://github.com/smeevil/responsive-block-grid-example

Just reading your Readme alone I was confused if {{> reactiveBlockGrid cursor=myCursor template='myTemplate'}} should be insidee the container or if it creates the container for you. Looking at your example source answered my questions, but I had to hunt it down using Google.