Added omitted square brackets example with parametric typing.

Author: lizmat

S02-bits.pod

@@ -1734,10 +1734,14 @@ value each of its elements stores:
 Each successive C<of> makes the type on its right a parameter of the
 type on its left. Parametric types are named using square brackets, so:
 
-    my Hash of Array of Recipe %book;
+    my Hash[Array[Recipe]] %book;
 
 actually means:
 
+    my Hash of Array of Recipe %book;
+
+which is:
+
     my Hash:of(Array:of(Recipe)) %book;
 
 Because the actual variable can be hard to find when complex types are