Added notebook in Arabic

[ariguiba]

This notebook is an example of Arabic localization, right-to-left text support, and best practices for writing in Arabic (and for any right-to-left language, I've included some tips in English).
The notebook also includes a small game that makes experimenting with Arabic text and right-to-left layouts more engaging for new users.

[fonsp]

Very fun, thank you!! One comment: there is a sidenote that says

"👈 You can easily switch between Arabic and English in the same cell"

But that makes it sound like I can switch that as a reader of this notebook. Maybe 'switch' isn't the right word? You mean that you can write cells in any language, and the direction is automatic, right?

Maybe it would be better to split all the intro cells in two, to have cells with either completely LTR or RTL markdown content, instead of mixing the two?

[ariguiba]

But that makes it sound like I can switch that as a reader of this notebook. Maybe 'switch' isn't the right word? You mean that you can write cells in any language, and the direction is automatic, right?

Totally agree my formulation is confusing 😅

Maybe it would be better to split all the intro cells in two, to have cells with either completely LTR or RTL markdown content, instead of mixing the two?

Yes! That's a very good suggestion :) My message was that we can use both languages in the same notebook if needed, so yes you are right that two cells convey the message better, I just changed it 👍🏼

[fonsp]

It looks good, thank you!!