Insert a level in the intro that forces players to use the command line

levels/index/new

@@ -11,6 +11,10 @@ To learn how that works, we need to learn about the "index"! In the index, we ca
 
 Initially, the index is empty. To make a commit that contains a new file, we need to add it!
 
+[cli]
+
+You can use tab completion in the terminal! Start typing a filename, then press the tab key to complete its name. This will often save you some time!
+
 [setup]
 
 echo "The candle is burning with a blue flame." > candle

levels/intro/cli

@@ -0,0 +1,29 @@
+title = The command line
+cards = 
+
+[description]
+
+These playing cards are designed to be easy to use and to remember! We'd suggest sticking to them if you don't have a lot of experience with Git!
+
+[cli]
+
+But there's another way to interact with Git:
+
+Try typing `git init` into the black terminal below, and pressing the enter key!
+
+[setup]
+
+rm -rf .git
+
+[win]
+
+# Initialize the time machine!
+test -d .git
+
+[congrats]
+
+Cool! When you don't use the cards in a level, you'll get a golden sparkling "command line badge"! See it in the top left?
+
+The command line is pretty powerful! Often, you can use it to solve tasks faster compared to using a graphical interface.
+
+It's also totally optional in this game. But if you want to learn how to use Git from the command line, we invite you to this challenge! :)

levels/intro/init

@@ -7,11 +7,7 @@ You've been accepted to time travel school! Yay! It's your first day! Your teach
 
 "To do anything with a time machine, you first need to initialize it!"
 
-Drag the blue card up to play it!
-
-[cli]
-
-Instead of using the card, you can also type `git init` into the black box below, and press the enter key!
+Drag that blue card up to play it!
 
 [setup]
 

levels/intro/remote

@@ -15,6 +15,8 @@ To clone the teacher's repo via the command line, you need this command:
 
 (Don't forget the dot at the end!)
 
+To go through old commands, you can press arrow up and down. That way, you don't have to type in long commands twice.
+
 [congrats]
 
 Welcome to time travel school! :) I'll see you for your first class tomorrow!

levels/intro/sequence

@@ -1,5 +1,6 @@
 risky
 copies
 init
+cli
 commit
 remote

levels/workflows/sequence

@@ -1,2 +1 @@
 pr
-gitignore