diff --git a/Selection-code.md b/Selection-code.md
index 700010a..125736b 100644
--- a/Selection-code.md
+++ b/Selection-code.md
@@ -1,5 +1,12 @@
 The selection code is a set of C++ scripts. First, the running of the code is introduced. Then, each part of the code is explained. The main file of the selection code is [[B2Kstmumu.cpp|B2Kstmumu]]. However, as the code required a lot of reruns and checks at different places, the main code execution became obsolete and the scripts are compiled and run in ROOT step by step. However, the file [[B2Kstmumu.pro|B2Kstmumu.pro]] can be used by the QtCreator IDE.
 
+## Table of Contents
+* [Setting up ROOT](#setting-up-root)
+* [Running the code](#running-the-code)
+   * [Mass Fit compilation](#mass-fit-compilation)
+   * [Checking the inclusive sample](#checking-the-inclusive-sample)
+
+
 ## Setting up ROOT
 **TODO**