diff --git a/readme.md b/readme.md
index bf6d80d..e05fca4 100644
--- a/readme.md
+++ b/readme.md
@@ -15,9 +15,9 @@ Intro.
 
 ## 2 How
 
-## 3 What
+## 3 [What](#toc){#what}
 
-## 4 {#who} [Who](#toc)
+## 4 [Who](#toc) {#who}
 
 ### 4.1 Author