diff --git a/Docs/coding guide.md b/Docs/coding guide.md
index 5dda84c..7757bfd 100644
--- a/Docs/coding guide.md	
+++ b/Docs/coding guide.md	
@@ -1,4 +1,4 @@
-# Formatting
+# 1 Formatting
 ## 1.1 General
 maximal 80-100 letters in one line