Update README.md

Author: vityaman

README.md

@@ -6,6 +6,12 @@ Arhitecture course. It is translated to `Tafka IR`,
 that then is compiled into `Asmik` assembler for the
 `Sleepy VM`.
 
+## TODO
+
+- Physical registers allocation (now there are only virtual registers)
+- Translation to RISC-V M assebler
+- Input validation inluding typechecking
+
 ## Documentation
 
 - [Language Specification](./doc/lang/spec.md)