Add -rule to links to rule documentation (#1629)

main/src/main/resources/report.html

@@ -331,7 +331,7 @@ <h3><span th:text="${summary.noticeCount}">X</span> notices reported
                             <h3 th:text="${noticesByCode.key}" />
                             <p th:utext="${noticesByCode.value[0].description}" />
                             <p> You can see more about this notice <a
-                                    th:href="@{'https://gtfs-validator.mobilitydata.org/rules.html#' + ${noticesByCode.key}}">here</a>.
+                                    th:href="@{'https://gtfs-validator.mobilitydata.org/rules.html#' + ${noticesByCode.key} + '-rule'}">here</a>.
                             </p>
                              <p th:if="${noticesByCode.value.size > 50}">Only the first 50 of <span th:text="${noticesByCode.value.size}"></span> affected records are displayed below.</p>
                             <table>