Fix typo; ilmari++

Author: zoffixznet

doc/Type/Num.pod6

@@ -13,7 +13,7 @@ precision".
 =head2 NaN
 
 The value X<C<NaN>|NaN (definition)> is an instance of C<Num> and represents a
-float point not-a-number value, which is returned from some routines where
+floating point not-a-number value, which is returned from some routines where
 a concrete number as the answer is not defined, but a L<Numeric> value is still
 accceptable. C<NaN> is L<defined> and L<boolifies|/routine/Bool>
 to C<True>, but is I<not> numerically equal to any value (including itself).