Update README.md

README.md

@@ -1,3 +1,8 @@
 Oberon → ARMv{6,7E}-M compiler ([BlackBox](http://www.oberon.ch/blackbox.html) subsystem), based on N. Wirth [Project Oberon](http://www.inf.ethz.ch/personal/wirth/ProjectOberon/index.html) Oberon → RISC compiler
 
-Alexander V. Shiryaev, 2016
+Subsystems:
+* [O7](O7): compiler, linker
+* [Micro](Micro): framework for microcontrollers
+* [Mobx](Mobx): [Micro](Micro) examples
+
+Alexander V. Shiryaev, 2017