Reorder levels and chapters into a better sequence

levels/time-machine/branching

@@ -1,53 +0,0 @@
-title = Parallelism
-cards = checkout commit-auto
-
-[description]
-
-Did you know that creating parallel timelines is perfectly legal and safe? It's true!
-
-Can you find out when things went wrong in this zoo, and create a parallel universe where everyone is happy?
-
-[setup]
-
-mkdir cage
-echo "Looks very hungry." > cage/lion
-
-echo "A small child.
-It really loves cats!" > child
-git add .
-git commit -m "The beginning"
-
-echo "It's holding a lollipop." >> child
-git commit -am "The child buys something"
-
-mv child cage
-git add .
-git commit -m "The child climbs somewhere"
-
-git rm cage/child
-echo "Looks happy. :)" > cage/lion
-git add .
-git commit -m "Oh no"
-
-echo "It's sleeping." > cage/lion
-git add .
-git commit -m "Nap time!"
-
-git checkout --detach
-git branch -d main
-
-[win]
-
-# Is the child still there?
-git ls-tree --name-only -r HEAD | grep child
-
-# Is the lion not hungry?
-git show HEAD:cage/lion | grep -v "very hungry"
-
-[congrats]
-
-Whew, good job! This seems like a *much* better outcome.
-
-Feel free to add more parallel timelines, or make them longer.
-
-If you're ready, our next mission is already waiting...