Update getting started guide in Azure documentation

[azure]

Update getting started guide in Azure documentation

[sandeepmistry]

@stefangordon @obsoleted what are your thoughts on this page? Should we continue to maintain it, or move more documentation to this repo and link to it from the Azure documentation?

[obsoleted]

The long term decision for this will be tied to the resolution of #2 and how the final code flow works. If we can get to a point where everything is coming from the upstream SDK then all the documentation will be in one place. But since the upstream SDK repo has a fair bit of complexity with the multitude of languages/devices it supports that is likely to take some time.

Since we do want most things to be in the upstream SDK I suggest that we leave it there and make revisions as needed. Perhaps in the PR to update the upstream documentation we can open up the discussion to the maintainers there.

[sandeepmistry]

Sounds good. Once the new release is out, could you please submit a PR for the relevant upstream documentation changes.

[tameraw]

Getting started docs are available here:
https://docs.microsoft.com/en-us/azure/iot-hub/iot-hub-arduino-huzzah-esp8266-get-started