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

entries/tankistonline.md

@@ -3,13 +3,11 @@
 - Home: https://github.com/servusDei2018/TankistOnline
 - State: beta
 - Platform: Windows, Linux, macOS
-- Keyword: action, multiplayer, tank
+- Keyword: action, multiplayer, tank, 2D
 - Code repository: https://github.com/servusDei2018/TankistOnline.git
 - Code language: Python
 - Code license: GPL-3.0
 - Code dependency: pyglet
 - Assets license: CC-BY-3.0 (some)
 
-2D tank battle game.
-
 ## Building