updated readme

README.md

@@ -48,3 +48,5 @@ currently supported instructions are:
    * `NOP`
 
 all other instructions treated as `NOP`
+
+on a gameboy, the instruction `LD (HL), (HL)` is treated as a `HALT`, however i am not making a gameboy perfect vm as of now, so opcode `$76` is currently treated as `LD (HL), (HL)`