Update objects.pod6 with further refinements, simplification, clarification of section on attribute mutator methods.

Author: ronaldxs

doc/Language/objects.pod6

@@ -297,25 +297,24 @@ Method names can be resolved at runtime with the C<.""> operator.
     # OUTPUT: «(Any)␤»
 
 The syntax used to update C<$.notes> changed in this section with respect
-to the previous L<#Attributes> section. Instead of:
+to the previous L<#Attributes> section. Instead of an assignment:
 
     $vacation.notes = 'Pack hiking gear and sunglasses!';
 
-we now:
+we now do a method call:
 
     $trip.notes("First steps");
 
 Overriding the default auto-generated accessor means it is no longer
-available to provide a mutable container on return, and the new update
-method is called to set the attribute rather than an assignment.
-Using a method call is the preferred approach to adding computation
-and logic to the update of an attribute.  Many modern languages can
-update an attribute by overloading assignment with a “setter” method.
-While Perl 6 can overload the assignment operator for this purpose
-with a
+available to provide a mutable container on return for an assignment.
+A method call is the preferred approach to adding computation and
+logic to the update of an attribute.  Many modern languages can update
+an attribute by overloading assignment with a “setter” method.  While
+Perl 6 can overload the assignment operator for this purpose with a
 L<C<Proxy>|https://github.com/perl6/roast/blob/master/S12-attributes/mutators.t>
 object, overloading assignment to set attributes with complex logic is
-currently discouraged as weaker OO design.
+currently discouraged as
+L<weaker object oriented design|https://6guts.wordpress.com/2016/11/25/perl-6-is-biased-towards-mutators-being-really-simple-thats-a-good-thing/>.
 
 =head2 Class and Instance Methods