Add nightly/stable Aarch64 builds to Community page about build

We also host Dockerhub images for Aarch64 - https://hub.docker.com/r/linaro/tensorflow-arm-neoverse-n1

[angerson]

Great, thank you!

Can you make a PR on tensorflow/tensorflow to add your badge to the README.md? Since there are two Aarch64 badges, you can update the existing ones to say "(Openlab)" and have yours say "(Linaro)".

For the Dockerhub images, can you add a section to this repo's build/images/readme.md like the other ones?

[AshokBhat]

@neuralmimicry Thanks for raising the PR for readme.md. I had two observations regarding the PR

1. PR adds a line item for Nightly build - which as far as I can see is not enabled in http://snapshots.linaro.org/hpc/python/tensorflow/latest/ yet.
2. Dockerhub images PR has been raised against Tensorflow/tensorflow repo rather than this repo's (tensorflow/build) build/images/readme.md

[angerson]

I think this can be closed since it's been resolved somewhere else.