Update rule.md

Author: timhunt

versioned_docs/version-5.0/apis/plugintypes/quizaccess/_examples/rule.md

@@ -1,4 +1,4 @@
 <!-- markdownlint-disable first-line-heading -->
 The rule class defines the behaviour of your rule and how it will restrict access for users attempting a quiz.
 
-Please refer to the inline phpdocs of the [mod_quiz::access_rule_base class](https://github.com/moodle/moodle/blob/main/mod/quiz/classes/local/access_rule_base.php) for detailed descriptions of the functions and meaning.
+Please refer to the inline phpdocs of the [mod_quiz::access_rule_base class](https://github.com/moodle/moodle/blob/main/public/mod/quiz/classes/local/access_rule_base.php) for detailed descriptions of the functions and meaning.