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

entries/tremulous.md

@@ -6,13 +6,11 @@
 - State: mature, inactive since 2016
 - Download: https://web.archive.org/web/20200114115222/http://tremulous.net/files/
 - Platform: Windows, Linux, macOS
-- Keyword: action, clone, shooter
+- Keyword: action, clone, shooter, team-based, first-person, realtime
 - Code repository: https://github.com/darklegion/tremulous.git, http://tremulous.cvs.sourceforge.net (cvs)
 - Code language: C
 - Code license: GPL-2.0
 - Code dependency: SDL
 - Assets license: CC-BY-SA-2.5
 
-Asymmetric team-based first-person shooter with real-time strategy elements.
-
 ## Building