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

entries/argentum_online.md

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+# Argentum Online
+
+_Open Source FREE 2D MMORPG._
+
+- Home: http://www.comunidadargentum.com/ (Spanish)
+- State: beta, inactive since 2014
+- Download: http://www.comunidadargentum.com/descargas/
+- Keywords: role playing, massive multiplayer online
+- Code repository: https://github.com/Argentum-Online/Argentum-Online.git, http://morgoao.cvs.sourceforge.net/ (cvs)
+- Code language: Visual Basic
+- Code license: GPL-2.0
+
+See also: [spin-off](https://github.com/horacioMartinez/argentumonline.io), [server mod](https://sourceforge.net/projects/aoserverbyshura/).
+
+## Building
+
+