rename fields to improve understanding, adapting maintenance.py (intermediate)

games/rpg/uidunad.md

@@ -5,9 +5,9 @@ _Ultimate Dungeon Adventure (UlDunAd) - the extremely flexible, fun, text/graphi
 - Home: https://www.pygame.org/project-UlDunAd-1140-.html
 - State: beta, inactive since 2011
 - Keywords: text-based
-- Code: https://github.com/nhydock/UlDunAd
-- Language(s): Python
-- License: GPL-3.0
+- Code repository: https://github.com/nhydock/UlDunAd
+- Code language: Python
+- Code license: GPL-3.0
 - Dependencies: PyGame
 
 ## Building