Add more levels in the new format

levels/top-down/rebase

@@ -1,3 +1,7 @@
+description = Rebase all branches on top of the main branch, so that the commits are in alphabetical order, and then point the main branch to the top commit.
+
+[setup]
+
 git commit --allow-empty -m A
 git commit --allow-empty -m B
 git commit --allow-empty -m C
@@ -10,3 +14,7 @@ git switch -c side2 main~2
 git commit --allow-empty -m F
 
 git checkout main
+
+[win]
+
+diff <(git log --pretty=%s main) <(echo -e "F\nE\nD\nC\nB\nA")

levels/top-down/rebase/description

@@ -1 +0,0 @@
-Rebase all branches on top of the main branch, so that the commits are in alphabetical order, and then point the main branch to the top commit.

levels/top-down/rebase/goal

@@ -1,9 +0,0 @@
-git switch side1
-git rebase main
-git switch side2
-git rebase side1
-git switch main
-git merge side2
-
-git reflog expire --expire=all --all
-git prune

levels/top-down/rebase/win

@@ -1 +0,0 @@
-diff <(git log --pretty=%s main) <(echo -e "F\nE\nD\nC\nB\nA")

levels/top-down/sandbox

@@ -0,0 +1,8 @@
+[setup local]
+
+git commit --allow-empty -m "1"
+git commit --allow-empty -m "2"
+git commit --allow-empty -m "3"
+git push
+
+[setup origin]

levels/top-down/sequence

@@ -1 +1 @@
-welcome
+sandbox

levels/top-down/welcome/description

@@ -1 +0,0 @@
-Hiiii!