Fixed doubled a

doc/Language/objects.pod6

@@ -530,7 +530,7 @@ Objects are generally created through method calls, either on the type
 object or on another object of the same type.
 
 Class L<Mu> provides a constructor method called L<new>, which takes named
-L<arguments|/laanguage/functions#Arguments> and uses them to initialize public attributes.
+L<arguments|/language/functions#Arguments> and uses them to initialize public attributes.
 
     class Point {
         has $.x;