fix typo

Author: coke

doc/Type/Str.pod6

@@ -846,7 +846,7 @@ C<$matcher> can be a L<Regex>, or a literal C<Str>. Non-Str matcher arguments
 of type L<Cool> are coerced to C<Str> for literal matching.
 If a L<Regex> C<$matcher> is used, the
 L«C<$/> special variable|/syntax/$$SOLIDUS» will be set to C<Nil> (if no
-matches occured), a L<Match> object, or a L<List> of L<Match> objects (if
+matches occurred), a L<Match> object, or a L<List> of L<Match> objects (if
 multi-match options like C<:g> are used).
 
 =head3 Literal replacement substitution
@@ -938,7 +938,7 @@ if no matches occurred.
 
 If a L<Regex> C<$matcher> is used, the
 L«C<$/> special variable|/syntax/$$SOLIDUS» will be set to C<Nil> (if no
-matches occured), a L<Match> object, or a L<List> of L<Match> objects (if
+matches occurred), a L<Match> object, or a L<List> of L<Match> objects (if
 multi-match options like C<:g> are used).
 
 =head2 routine substr