Update CONTRIBUTING.md

Author: DFIRKuiper

.github/CONTRIBUTING.md

@@ -1,4 +1,6 @@
 
+# Table of Content
+
 - [1. Contribution](#Contribution)
   - [1.1. Parsers List](#Parsers-List)
   - [1.2. Parsers Requests](#Parsers-Requests)