Polish branches chapter

levels/branches/branch-remove

@@ -1,4 +1,4 @@
-title = Choose your own adventure
+title = Deleting branches
 cards = checkout commit-auto reset-hard branch-delete
 
 [description]
@@ -7,8 +7,6 @@ Life is full of dangers, right? Even when walking to school, it seems like there
 
 This Monday is especially bad. You made it to school, but there's some timelines you definitely don't want to keep around.
 
-Find the bad branches and delete them. Keep the one that seems okay.
-
 [setup]
 
 echo You leave your house and start walking to school. > you
@@ -33,14 +31,16 @@ echo Because you\'re kind of late, you start running. Someone throws a piano out
 git commit -am "Sounds nice"
 
 git checkout HEAD^ -b ice-cream
-echo You\'re not in a hurry, and walk slowly. You even get some ice cream on your way. You arrive at school too late, and your teacher is angry. >> you
+echo You\'re not in a hurry, and walk slowly. You even get some ice cream on your way. You arrive at school too late, your teacher is angry, and you are expelled. >> you
 git commit -am "Yum"
 
-git checkout main
+git branch -M main leap
+git checkout leap^^
 
 [win]
 
-test "$(git branch | cut -c 3-)" = "$(echo -e ice-cream\\nmain)"
+# Find the bad branches and delete them. Keep the best one.
+test "$(git show-ref --heads | cut -f2 -d' ')" = "$(echo refs/heads/leap)"
 
 [congrats]