Add comments that appear with just --list

justfile

@@ -1,14 +1,16 @@
 set positional-arguments
 
+# Run all unit tests
+default: test
+
 # for convenience, run cask through bash
 cask *args:
     cask $@
 
+# Compile the Emacs Lisp file(s)
 compile:
 	cask emacs -batch -L . -L test --eval "(setq byte-compile-error-on-warn t)" -f batch-byte-compile $(cask files); (ret=$? ; cask clean-elc && exit $ret)
 
+# Run all unit tests
 test pattern=".": compile
     cask exec buttercup -L . --pattern {{pattern}} --no-skip
-
-buttercup:
-    emacs -batch -f package-initialize -L . -f buttercup-run-discover