Fix broken link, jast++

doc/Language/syntax.pod6

@@ -650,7 +650,7 @@ by an optional name, an optional signature and a code block.
 Subroutines are lexically scoped, so if a name is specified
 at the declaration time, the same name can be used
 in the lexical scope to invoke the subroutine.
-A subroutine is an instance of type L<Sub|type/Sub> and
+A subroutine is an instance of type L<Sub|/type/Sub> and
 can be assigned to any container.
 
 =comment TODO
@@ -667,7 +667,7 @@ can be assigned to any container.
 When declared within a class, a subroutine is named "method": methods
 are subroutines invoked against an object (i.e., a class instance).
 Within a method the special variable C<self> contains the object instance
-(see L<Methods|classtut#Methods>).
+(see L<Methods|/language/classtut#Methods>).
 
     =begin code :skip-test
     # Method invocation. Object (instance) is $person, method is set-name-age