Fixed incorrect tag

Author: Simi4

documentation/index.md

@@ -34,7 +34,7 @@ If you just want to load the library into your website you can either donwload t
 
 ```
 <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
-<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery-contextmenu/2.7.1/jquery.contextMenu.min.css"></script>
+<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/jquery-contextmenu/2.7.1/jquery.contextMenu.min.css">
 <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery-contextmenu/2.7.1/jquery.contextMenu.min.js"></script>
 <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery-contextmenu/2.7.1/jquery.ui.position.js"></script>
 ```