Building interactive demos for examples

### Describe the issue linked to the documentation

This is not an issue but rather a good-to-have feature for documentation and this issue is more of a discussion.

It would be nice to have links to or embedding interactive demos made with Gradio inside documentation. 
I've built two apps that you might see how it looks like:
- Anomaly detection: https://huggingface.co/spaces/scikit-learn/anomaly-detection
- Classification: https://huggingface.co/spaces/scikit-learn/classification

We can have below demo (but more official version 😅) embedded in your documentation.
<img width="1155" alt="Ekran Resmi 2022-11-10 15 11 41" src="https://user-images.githubusercontent.com/53175384/201114005-5fd13d40-990a-412d-abe6-fdd01d0f87d9.png">

The current workflow for users is to download python code or run binder. This reduces amount of work in this workflow too!
If you think embedded demos is a bit overkill what we could do is to create these demos and host them on [Spaces](https://huggingface.co/spaces) and put link to Space instead (like it is with Keras examples or kornia examples, you can see them [here](https://huggingface.co/keras-io) and [here](https://huggingface.co/kornia), they're linked from their tutorials on both [Keras.io/examples](https://keras.io/examples/) and Kornia docs) We will also host the Spaces in better hardware (8 vCPU 32 GiB RAM) to make sure it's always running and all good. ✨ 

You can see how it's implemented in Kornia for rst docs [here](https://raw.githubusercontent.com/kornia/kornia/627ebcaaab1547c362908fc9ad9a68c6316c5993/docs/source/filters.rst). It looks like [this](https://kornia.readthedocs.io/en/latest/filters.html#interactive-demo) inside Kornia docs.

<img width="1353" alt="Ekran Resmi 2022-11-10 15 15 08" src="https://user-images.githubusercontent.com/53175384/201114865-d44b6af5-0b85-44d1-b490-0450d8ea05aa.png">

As for Keras, we just put a redirection link inside docs since their document generation is more layered.  
<img width="1309" alt="Ekran Resmi 2022-11-10 15 09 57" src="https://user-images.githubusercontent.com/53175384/201113694-a4c5b804-dce4-4e72-b23e-bbe449bbc150.png">

We definitely want to reduce the core maintainers' workflow so what would be cool is that we (team at [Gradio](https://gradio.app/) & community)  will be developing the demos and maintaining them through GitHub actions such that they will not break every time there's a breaking change in sklearn (this happens rarely, though 🙂)

Hoping to see how we could collaborate!

COMMENT:
Hey @adrinjalali @ogrisel thanks a lot for the discussion! 
Reason why the core developers were very fond of it at the first place was how nice it is to interact with examples, e.g. have a canvas to draw clusters interactively (I think it was Olivier's idea?) or play with a parameter in a slider and see the effect of it real time thanks to event listeners. 
Besides this, some of the demos are multi-step, e.g. you can generate, visualize and interact with data in 3D, then train a model and see the effects of the parameters you played with. I remember talking to folks at the consortium and thought I'd just re-iterate on the motive :) now that there's so many cool demos that actually accomplish this, it would be very nice to let more people play with them.

Labels: Documentation, RFC