Tighten up and refactor the tutorial WIP

[plaindocs]

No major changes. Edits intended to

• simplify
• make more consistent
• streamline some instructions

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📚 Documentation previews 📚

• User's documentation (docs): https://docs--11316.org.readthedocs.build/en/11316/

• Developer's documentation (dev): https://dev--11316.org.readthedocs.build/en/11316/

[agjohnson]

Thanks for the clean up here, this is a great improvement!

I noted "import" vs "create" when referring to project creation. There is a longer conversation here:

• Change copy around "import project" #7280

It's not immediately necessary to be updating this verbiage, but perhaps instead we chip away where we can.

This is related to a larger update looming here, when we update our docs to use our new dashboard for instructions and UI screenshots. But again, not much we can do here immediately and we haven't talked about how we want to manage updating our docs.

[plaindocs]

I noted "import" vs "create" when referring to project creation. There is a longer conversation here:

* [Change copy around "import project" #7280](https://github.com/readthedocs/readthedocs.org/issues/7280)

This is related to a larger update looming here, when we update our docs to use our new dashboard for instructions and UI screenshots. But again, not much we can do here immediately and we haven't talked about how we want to manage updating our docs.

This is great to know about, thanks.

[agjohnson]

These changes all look great, I only have minor notes on the changes.