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

entries/corsixth.md

@@ -4,14 +4,12 @@
 - Inspiration: Theme Hospital
 - State: mature
 - Download: https://github.com/CorsixTH/CorsixTH/releases
-- Keyword: remake, strategy, commercial content, requires original content
+- Keyword: remake, strategy, commercial content, requires original content, simulation
 - Code repository: https://github.com/CorsixTH/CorsixTH.git
 - Code language: Lua, C++
 - Code license: MIT
 - Code dependency: SDL2
 
-Reimplementation of the 1997 Bullfrog business sim Theme Hospital.
-
 ## Building
 
 - Build system: CMake