[S02] unconfuse wording about type objects

since a type object is the opposite of an instance, it is confusing to call
it an instance of soemthing. anant++, sorear++

S02-bits.pod

@@ -500,8 +500,8 @@ It merely assigns an undefined C<Dog> prototype object to C<$spot>:
     $spot.defined;          # False
     say $spot;              # "Dog()"
 
-Any type name used as a value is an undefined instance of that type's 
-prototype object, or I<type object> for short.  See S12 for more on that.
+Any type name used as a value is the undefined prototype object of that
+type, or I<type object> for short.  See S12 for more on that.
 
 Any type name in rvalue context is parsed as a single type value and
 expects no arguments following it.  However, a type object responds to the