fix jump syntax

Author: sayon

src/sem/Jump.v

@@ -16,7 +16,7 @@ ins=Instruction(abstract_name="OpJump", mnemonic="jump", in1=In.Any, out1=Out.Re
 descr = InstructionDoc(
 ins = ins,
 
-syntax_override = syntax(ins) + ["`jmp in1`, alias for `jmp in1, r0`"],
+syntax_override = syntax(ins) + ["`jump in1`, alias for `jump in1, r0`"],
 summary = """
 Unconditional jump (becomes conditional through predication).