Add chestxray.ai example to https://github.com/tensorflow/tfjs-examples

[jordimassaguerpla]

Hi!

I did this small project about predicting diseases based on a Chest X Ray, using tensorflowjs. I thought it could be a great example for your repository of examples.

https://github.com/jordimassaguerpla/chestxray.ai

Could you please consider its addition?

Note I am not a javascript expert, so I am open to review the code, refactor, etc...

[pyu10055]

We are happy to promote your work, you can submit a PR to add your link to our gallery page. Also feel free to reach out to our Developer relationship lead @jasonmayes to discuss more.