Tweak hello world

koans.tm

@@ -45,7 +45,7 @@ struct Lesson(file:Path, description:Text, expected_output=none:Text):
         return Success(output)
 
 LESSONS := [
-    Lesson((./lessons/lesson-01.tm), "Getting Started", "Hello world$\n"),
+    Lesson((./lessons/lesson-01-hello-world.tm), "Hello World", "Hello world$\n"),
     Lesson((./lessons/lesson-02.tm), "Working with Text"),
 ]
 

lesson-templates/lesson-01-hello-world.tm

@@ -0,0 +1,7 @@
+# This is a simple "Hello world" program.
+
+# Programs need a main() function to run:
+func main():
+
+    # Edit this code so it prints the text "Hello world"
+    say("Goodbye moon")

lesson-templates/lesson-01.tm

@@ -1,5 +0,0 @@
-# This is a simple "Hello world" program.
-# Edit it so it prints the text "Hello world":
-
-func main():
-    say("Goodbye moon")