Update Azure doc tutorial to prefix npm bin path (#827)
Update Azure doc tutorial to prefix npm bin path (#827)

* Update Azure doc tutorial to prefix npm bin path

This PR tries to address the issue raised that Azure notebook
tutorial does not work on Colab any more. It looks like the
bin path of the npm packages is not exposed in PATH environmental variable
any more.

This PR add the following to get the npm_bin_path, and prefix
the azurite-blob package to have the full path available:
```
npm_bin_path = get_ipython().getoutput('npm bin')[0]
```

Note `npm bin` will output the package bin path, see
https://docs.npmjs.com/cli/bin.html

Signed-off-by: Yong Tang <765086fe2e0c1f980161f127fec596800f327f62@outlook.com>

* set private_outputs=false

* Run Azure on Google Colab, and save the output

Signed-off-by: Yong Tang <765086fe2e0c1f980161f127fec596800f327f62@outlook.com>

Co-authored-by: Mark Daoust <d1a0a4e72029c8460759d518d8873abe808bde42@google.com>

tensorflow/io,tensorflow/io,tensorflow/io,tensorflow/io,tensorflow/io,tensorflow/io,tensorflow/io