Add marimo example

[Haleshot]

• Add marimo x Pygwalker demo code (reference to relevant issue comment - Support for Pygwalker Data Visualizations in marimo #638 (comment))
• Add README for examples subfolder giving some context to running examples

I want to make some changes to the root README; including marimo in places where open in Google Colab and Kaggle links are provided. This will be a link to the marimo.cloud/marimo.new with a slug link; basically a marimo notebook running on the browser (made possible using WASM + Pyodide; relevant marimo blog) - will this be appreciated? Do let me know.

Also want to contribute to the docs usage for marimo here; like how it exists for jupyter (streamlit, gradio, etc.) - https://docs.kanaries.net/pygwalker/api-reference/jupyter

[Haleshot]

Ahh, I see one PR being raised here - #653; however, I don't see any similarities with the changes made here as it includes root README changes (which I proposed here).

[Haleshot]

Hi, posting from my above content here:

I want to make some changes to the root README; including marimo in places where open in Google Colab and Kaggle links are provided. This will be a link to the marimo.cloud/marimo.new with a slug link; basically a marimo notebook running on the browser (made possible using WASM + Pyodide; relevant marimo blog) - will this be appreciated? Do let me know.
Also want to contribute to the docs usage for marimo here; like how it exists for jupyter (streamlit, gradio, etc.) - https://docs.kanaries.net/pygwalker/api-reference/jupyter

[ObservedObserver]

Hi, thank you for your interest in contributing! Yes, documentation updates and improvements would be greatly appreciated.

Currently, the Kanaries documentation website contains content beyond PyGWalker, including other open-source project documentation and marketing materials. To make community contributions easier, I'm planning to extract all PyGWalker-specific content into an independent repository.

This migration is scheduled to be completed by next Wednesday. I'll share the new documentation repository with you once it's ready.

In the meantime, feel free to prepare your marimo integration content, and I'll help guide you on where to add it in the new repository structure.

[Haleshot]

In the meantime, feel free to prepare your marimo integration content, and I'll help guide you on where to add it in the new repository structure.

That works, thanks!