add output of .WHAT to example

Author: schultzdavid

doc/Type/Enumeration.rakudoc

@@ -16,6 +16,7 @@ types:
 
     enum norse-gods <Þor Oðin Loki>;
     my $one-of-them = norse-gods.pick;
+    say $one-of-them.WHAT; # OUTPUT: «(norse-gods)»
     say $one-of-them ~~ Enumeration; # OUTPUT: «True␤»
 
 but nothing prevents you from using it in your own programs if you want to
@@ -64,7 +65,7 @@ T and A
 # and so on...
 =end code
 
-An item would smartmatch the enum class, but not the other way round:
+An item would smartmatch the enum cass, but not the other way round:
 
 =for code
 enum Foo <bar baz>;