More polish, hide unfinished chapters/levels

levels/intro/copies

@@ -1,18 +1,23 @@
-title = Making copies
+title = Making backups
 cards =
 
 [description]
 
 One month later, you're working on an essay about cats.
+
 You've started making backup copies of your essay regularly - you can look at them by clicking on them!
 
-Your current version, essay4.txt, needs one more line
+You think that you're almost done - your current version, just needs one more line!
 
 [congrats]
 
-Okay, this works. But you're a bit worried that two weeks from now, you'll have hundreds of copies of your essay, and it will be hard to keep track of all of them.
+Okay, this kind of works.
 
-And especially when working with other people, sending copies back and forth doesn't seem ideal. Let's look at another way to do this!
+But you're a bit worried that two weeks from now, you'll have hundreds of copies of your essay, and it will be hard to keep track of all of them.
+
+And especially when working with other people, sending copies back and forth doesn't seem ideal.
+
+You wonder what would be a better way to do this.
 
 [setup]
 
@@ -20,7 +25,7 @@ rm -rf .git
 
 echo "~ Why cats are the best pets ~
 
-(I still need to write this.)" >> essay1.txt
+(I still need to write this.)" >> essay.txt
 
 
 echo "~ Why cats are the best pets ~
@@ -31,11 +36,11 @@ echo "~ Why cats are the best pets ~
 echo "~ Why cats are the best pets ~
 
 - They live longer than goldfish.
-- Their little paws are super cute." >> essay3.txt
+- Their little paws are super cute." >> essay2_final.txt
 
-cp essay3.txt essay4.txt
+cp essay2_final.txt essay2_really_final.txt
 
 [win]
 
-# Add two more lines to essay4.txt!
-test "$(cat essay4.txt | wc -l )" -ge 6
+# Add another line to essay2_really_final.txt!
+test "$(cat essay2_really_final.txt | wc -l )" -ge 5