Add Num.Num

Author: stoned

doc/Type/Num.pod6

@@ -131,6 +131,12 @@ Converts the number to a L<FatRat|/type/FatRat> with the precision C<$epsilon>.
 is a C<Inf>, C<-Inf>, or a C<NaN>, converts them to a L<FatRat|/type/FatRat> with C<0>
 L<denominator|/routine/denominator> and C<1>, C<-1>, or C<0> L<numerator|/routine/numerator>, respectively.
 
+=head2 method Num
+
+    method Num()
+
+Returns the invocant.
+
 =head2 method Bridge
 
 Defined as: