diff --git a/readme.md b/readme.md
index 9bacc2e..d21ec34 100644
--- a/readme.md
+++ b/readme.md
@@ -1,7 +1,7 @@
 # BiGpairSEQ SIMULATOR
 
 ## CONTENTS
-1. ABOUT
+1. [ABOUT](#About)
 2. THEORY
 3. THE BiGpairSEQ ALGORITHM
 4. USAGE