renamed games folder to entries folder (also contained frameworks, libraries, ...) and added to the backlog

entries/et_legacy.md

@@ -0,0 +1,16 @@
+# ET: Legacy
+
+_Fully compatible client and server for the online FPS game Wolfenstein: Enemy Territory._
+
+- Home: https://www.etlegacy.com/
+- State: mature
+- Download: https://www.etlegacy.com/download
+- Platform: Windows, Linux, macOS
+- Keywords: action, commercial content, inspired by Wolfenstein: Enemy Territory, remake, shooter
+- Code repository: https://github.com/etlegacy/etlegacy.git
+- Code language: C, C++, Lua
+- Code license: GPL-3.0
+
+## Building
+
+- Build system: CMake