Get it right

ROM2/main_basic.c

@@ -416,7 +416,7 @@ void help() {
 		" ECHO {ON|OFF} turn echo on or off" CRLF
 		" GETROM        download the ROM source code using xmodem" CRLF
 		" H[...]        this help screen" CRLF
-		"*JUMPxxxx      jumps to a subroute at location xxxx" CRLF
+		"*JUMPxxxx      jumps to a subroutine at location xxxx" CRLF
 		"*PEEKxxxx      returns the value of the byte at location xxxx" CRLF
 		"*POKExxxxyy    sets the value of location xxxx to yy" CRLF
 		" PING          pongs" CRLF