Review updated "Input Format" documentation

[rgaiacs]

I updated https://gesis-methods-hub.github.io/methodshub/articles/input-format.html.

@schochastics I included formats that we hope to support and link to the respective issue.

@arnim Did I forgot any MyST related format?

@yfiua I included a note covering Python packages. Is that sufficient?

[yfiua]

great, thanks!

[arnim]

Look's good to me

[arnim]

Maybe it's also worth collecting some community feedback. For Jupyter this could be at discourse. There are also some interesting posts on this subject 😄

[yfiua]

could just set up a discord though for rapid feedback

[chainsawriot]

How about this for this file

# Supported formats

## README.md

## Markdown

....

# Unsupported formats (yet)

## Quarto (book)

...

If you think that this organization is better, I can submit a PR.

[schochastics]

@chainsawriot I like this organization