Review and edits while checking #2632

Author: JJ

doc/Type/QuantHash.pod6

@@ -2,13 +2,13 @@
 
 =TITLE role QuantHash
 
-=SUBTITLE Object hashes with limitation on type of value
+=SUBTITLE Object hashes with a limitation on the type of values
 
     role QuantHash does Associative { }
 
-The C<QuantHash> role provides the basic functionality shared by the L<Setty|/type/Setty>,
-L<Baggy|/type/Baggy> and L<Mixy|/type/Mixy> roles.  These provide object hashes of which the values
-are limited in some way.
+The C<QuantHash> role provides the basic functionality shared by the
+L<Setty|/type/Setty>, L<Baggy|/type/Baggy> and L<Mixy|/type/Mixy> roles.  These
+provide object hashes whose values are limited in some way.
 
 C<QuantHashes> are what L<set operators|/language/setbagmix> use internally.