moved the entries up one folder, added the folder to the keywords

games/bzflag.md

@@ -0,0 +1,18 @@
+# BZFlag
+
+_Multiplayer tank game._
+
+- Home: https://www.bzflag.org/, https://sourceforge.net/projects/bzflag/
+- Media: https://en.wikipedia.org/wiki/BZFlag
+- State: mature
+- Download: https://www.bzflag.org/downloads/
+- Platform: Windows, Linux, macOS
+- Keywords: action, shooter
+- Code repository: https://github.com/BZFlag-Dev/bzflag.git, https://svn.code.sf.net/p/bzflag/code/ (svn)
+- Code language: C++
+- Code license: LGPL-2.1, MPL-2.0
+
+## Building
+
+- Build system: Autoconf
+