diff --git a/readme.md b/readme.md
index e05fca4..d5212b4 100644
--- a/readme.md
+++ b/readme.md
@@ -13,7 +13,7 @@ Intro.
 
 ## 1) Why
 
-## 2 How
+## 2 [How] (#toc) {#how}
 
 ## 3 [What](#toc){#what}