diff --git a/docs/index.html b/docs/index.html
index 606ab240..ea233484 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -51,8 +51,12 @@
       pagination: {
         crossChapter: true,
         crossChapterText: false,
-      }
+      },
 
+      'page-toc': {
+        tocMaxLevel: 3,
+        target: 'h1, h2, h3'
+      },
     }
   </script>
   <!-- Docsify v4 -->
@@ -68,6 +72,8 @@
   <script src="https://cdn.jsdelivr.net/npm/docsify-sidebar-collapse/dist/docsify-sidebar-collapse.min.js"></script>
 
   <script src="https://unpkg.com/docsify-pagination/dist/docsify-pagination.min.js"></script>
+
+  <script src="https://unpkg.com/docsify-page-toc/dist/docsify-page-toc.js"></script>
 </body>
 
-</html>
+</html>
\ No newline at end of file