Documentation Typo - docs/SMARTonFHIR.md

[daughtryr]

There is small typo in the docs/SMARTonFHIR.md file that needs to be corrected -- replace "greated" with "created".

In the initial summary section, the last sentence currently reads:

Navigate to the App Service that was greated as part of the deployment.

The sentence should read:

Navigate to the App Service that was created as part of the deployment.