plot() and WebIO failure in Jupyter notebook

Based on documentation (`README.md` of this package and [docs of WebIO](https://juliagizmos.github.io/WebIO.jl/latest/providers/ijulia/)), PlotlyJS uses a Jupyter extension (`webio_jupyter_extension`) to render plots in Jupyter. However, that extension (v0.1.0) is 4 years old (based on release date in pypi) and does not work with Jupyterlab v4 as reported in https://github.com/JuliaGizmos/WebIO.jl/issues/514. Consequently, the figure object created with `plot()` will not display and instead generates the error `WebIO not detected.`

However, as I report in that same issue, it is possible to display the lower-level `Plot()` object. Specifically,
```
fig = plot()
display(fig.plot)
```
will show the plot without the webio-jupyter extension installed. So, I'm asking the developers, is that a reasonable workaround that would be expected to continue to work in the future? If so, I can spend a few minutes to create a PR to update the readme and docs to promote this usage in Jupyter notebooks.