Improve package loading compatibility in documentation

[portokallidis]

In some cases the import fails when trying to use the default export so its better if you also include aliases in the docs.
import * as WolframNotebookEmbedder from 'wolfram-notebook-embedder'

[poeschko]

Any chance you could point us to a full example that demonstrates the failing import?

[portokallidis]

Sure, here is a typical vanilla js project with a bundler.
https://codesandbox.io/s/wolfram-notebook-embedder-import-demo-o2wv7?file=/src/index.js

You can switch 3rd and 4th line to see what i mean.

[poeschko]

Thank you!

I'm adding a default export as a courtesy, but also changing the documentation to encourage the named import (import * as WolframNotebookEmbedder or import {embed}).