Fix typo.

Author: cfa

doc/Type/Pair.pod6

@@ -131,7 +131,7 @@ be different:
     say :10z ~~ :42a; # OUTPUT: «False␤»
 
 If C<topic> is any other value, uses the invocant's key as the name of the
-method to call on C<topic> and check's its L«C<.Bool>|/routine/Bool» is the same
+method to call on C<topic> and checks that its L«C<.Bool>|/routine/Bool» is the same
 as C<.Bool> of the invocant's value. This form can be used to check
 L<Bool|/type/Bool> values of multiple methods on the same object, such as
 L<IO::Path>, by using L<Junctions|/type/Junction>: