descriptions of entries checked and either incorporated to keywords and inspirations or redundancies removed

entries/chess3d.md

@@ -3,7 +3,7 @@
 - Home: http://yanngranjon.com/static/games/chess3D/
 - State: mature, inactive since 2016
 - Platform: Web
-- Keyword: board, strategy, chess, open content
+- Keyword: board, strategy, chess, open content, 3D
 - Code repository: https://github.com/FrenchYann/Chess3D.git
 - Code language: JavaScript, Python
 - Code license: GPL-3.0
@@ -11,6 +11,4 @@
 - Assets license: GPL-3.0
 - Developer: FrenchYann
 
-3D chess game with AI.
-
 ## Building