diff --git a/book/src/SUMMARY.md b/book/src/SUMMARY.md
index 9d3da7c..fc93426 100644
--- a/book/src/SUMMARY.md
+++ b/book/src/SUMMARY.md
@@ -1,4 +1,4 @@
-# Summary
+# Оглавление
 
 
 
@@ -8,5 +8,6 @@
 
 - [Chapter 1](./chapter_1.md)
 
+---- 
 
 - [Предисловие](./preface.md)