include ability to have non-identifier aliases

Author: TimToady

S06-routines.pod

@@ -1211,6 +1211,10 @@ parcel, the value will flatten in a list context, but itemize in an item context
 You can use C<< prefix:<|> >> to force flattening into an outer argument list, if
 needed.
 
+It is possible to alias to a non-identifier by using the C<term> syntactic category:
+
+    my \term:<∞> = Inf;
+
 =head2 Flattening argument lists
 
 The unary C<|> operator casts its argument to a C<Capture>