add machete hero to index.html

public/index.html

@@ -18,6 +18,10 @@
     <h3>HeroUnion源码下载</h3>
     <p><a href="https://git.filesite.io/filesite/hero_union" target="_blank">https://git.filesite.io/filesite/hero_union</a></p>
 
+    <h3>HeroBot - Machete Hero源码下载</h3>
+    <p><a href="https://git.filesite.io/filesite/machete_hero" target="_blank">https://git.filesite.io/filesite/machete_hero</a></p>
+    
+    
     <script type="text/javascript">
         var api = '/api/stats/';
         $.ajax({