Update tutorial for 0.23 and clarify diffedit #4872
+104
−36
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I ran through the tutorial using jj version 0.23 and there were some output changes compared to the tutorial so I updated those, fixed a few wording things, added a few hints and (hopefully) clarified the section around diffedit.
I'm a bit confused why the whole documentation exists twice in the repo. This PR currently only updates a single copy but when the changes are good I'm happy to update the second copy as well.
Checklist
If applicable:
CHANGELOG.md