docs: Update link of commit convention (#59)

Update dead link of commit conventions file.

docs/Guidelines.md

@@ -34,6 +34,6 @@ typically also nothing a developer can do to resolve the warning.
 type(scope): Description
 ````
 
-- required: every commit message has to start with a lowercase `type`. The project has defined a set of [valid types](../.commitlintrc.js#L6).
+- required: every commit message has to start with a lowercase `type`. The project has defined a set of [valid types](../commitlint.config.mjs#L10).
 - optional: the `scope` is typically the affected module. If multiple modules are affected by the commit, skip it or define a meaningful abstract scope.
 - required: the `description` has to follow the Sentence Case style. Only the first word and proper nouns are written in uppercase.