Improving the turtle graphics documentation via a series of PRs

The turtle graphics module has some comprehensive documentation, but could be improved with some:

• restructuring
• new material aimed at getting users more quickly into a successful experience

I propose to do this via a series of small PRs each targeting a particular incremental improvement.

Pitch

The Turtle graphics module looks like a good place where Diátaxis can be applied. It's quite self-contained, and will be an effective showcase for that kind of work.

I will submit small PRs (some could be very small), so that the purpose of each one is clear, and together they will provide a readable history of how documentation improvement works in practice under Diátaxis.

Linked PRs

• gh-106996: Amend the introduction to the turtle graphics documentation #106997
• gh-106996: Add the basics of a turtle graphics tutorial #107072
• [3.12] gh-106996: Add the basics of a turtle graphics tutorial (GH-107072) #107109
• [3.11] gh-106996: Add the basics of a turtle graphics tutorial (GH-107072) #107110
• gh-106996: Add a how-to section to the turtle documentation #107153
• [3.11] gh-106996: Add a how-to section to the turtle documentation (GH-107153) #107234
• [3.12] gh-106996: Add a how-to section to the turtle documentation (GH-107153) #107233
• gh-106996: Rewrite turtle explanation #107244
• [3.12] gh-106996: Rewrite turtle explanation (GH-107244) #107335
• [3.11] gh-106996: Rewrite turtle explanation (GH-107244) #107336