Add 'Deploy to Azure' and 'Visualize' buttons

[brandonh-msft]

This issue is for a: (mark with an x)

- [ ] bug report -> please search issues before submitting
- [X] feature request
- [ ] documentation issue or request
- [ ] regression (a behavior that used to work and stopped in a new release)

Would be great to add 'Deploy to Azure' and 'Visualize' buttons to the readme for ease of deployment

[brandonh-msft]

This gets a little tricky because there is additional work that needs to be done - namely pushing the NYC Data in to Azure Storage - to make this sample work.
I'm splitting this issue in to 'Deploy to Azure' [tabled] and 'Visualize' issues since we could work on the visualize portion now.

Deployment of the entire solution - including the taxi data - is done by the deployment scripts provided.