Fixing gamedata isn't a priority

Consider to use following mods:
- Zone Reclamation Project for Shadow of Chernobyl
- Sky Reclamation Project for Clear Sky
- Unofficial Patch 1.6.03 by Jurok or Pripyat Reclamation Project for Call of Pripyat.

README.md

@@ -17,7 +17,7 @@
     1. Aim at 99% compatibility and same behaviour, where possible.
     2. Compile engine into a single executable file that you can just drop into `bin` folder. (see [#210](https://github.com/OpenXRay/xray-16/issues/210))
 2. Support all three games in the series: SOC/CS/COP. (see [Supported games](#supported-games) below)
-3. Fix original S.T.A.L.K.E.R. series bugs.
+3. Fix original X-Ray Engine bugs that were polluting S.T.A.L.K.E.R. series.
 4. Introduce a solid platform for modmakers:
     1. Add frame/render graph for those who want to add new graphics features.
     2. Improve performance via refactoring the code, parallelizing the engine, making it multithreaded.