Better messages for help.

src/ankimaker/commands/from_csv.py

@@ -15,6 +15,9 @@ def generate_anki(
         name,
         config_file,
 ):
+    """
+    Create an anki deck from a csv file and a config file.
+    """
     output_file = parse_output(output_file)
     if name is None:
         name = get_name_from_output(output_file)