fix: modify hyperlink in HANDLED_RULES.md to correctly link list item…

… to its description (#585)

docs/HANDLED_RULES.md

@@ -28,7 +28,7 @@ Sorald can currently repair violations of the following rules:
     * [Fields in a "Serializable" class should either be transient or serializable](#fields-in-a-serializable-class-should-either-be-transient-or-serializable-sonar-rule-1948) ([Sonar Rule 1948](https://rules.sonarsource.com/java/RSPEC-1948))
     * [Unused assignments should be removed](#unused-assignments-should-be-removed-sonar-rule-1854) ([Sonar Rule 1854](https://rules.sonarsource.com/java/RSPEC-1854))
     * [Unused local variables should be removed](#unused-local-variables-should-be-removed-sonar-rule-1481) ([Sonar Rule 1481](https://rules.sonarsource.com/java/RSPEC-1481))
-    * [Unused \"private\" fields should be removed](#unused-private-fields-should-be-removed) ([Sonar Rule 1068](https://rules.sonarsource.com/java/RSPEC-1068))
+    * [Unused \"private\" fields should be removed](#unused-private-fields-should-be-removed-sonar-rule-1068) ([Sonar Rule 1068](https://rules.sonarsource.com/java/RSPEC-1068))
     * ["public static" fields should be constant](#public-static-fields-should-be-constant-sonar-rule-1444) ([Sonar Rule 1444](https://rules.sonarsource.com/java/RSPEC-1444))
     * [\"Serializable\" classes should have a \"serialVersionUID\"](#Serializable-classes-should-have-a-serialVersionUID-sonar-rule-2057) ([Sonar Rule 2057](https://rules.sonarsource.com/java/RSPEC-2057))
     * [Utility classes should not have public constructors](#utility-classes-should-not-have-public-constructors-sonar-rule-1118) ([Sonar Rule 1118](https://rules.sonarsource.com/java/RSPEC-1118))