:pencil2: Correction typo

src/migl/lisp/operator/MathOperator.java

@@ -26,7 +26,7 @@ public class MathOperator implements LispOperator {
 				return LispElement.generate(Math.cos(elt.toNumber()));
 			case "rint":
 				return LispElement.generate(Math.rint(elt.toNumber()));
-			case "rouund":
+			case "round":
 				return LispElement.generate(Math.round(elt.toNumber()));
 			default:
 				throw new LispError(operator + LispError.ERR_UNKNOW);