fix attacker port number

Author: djformby

simulation/web_visualization/index.html

@@ -324,7 +324,7 @@
       caldera:  "http://127.0.0.1:8888/"
     },
     "192.168.95.45": {
-      attacker: "http://192.168.90.6:6088/",
+      attacker: "http://192.168.90.6:6080/",
       defender: "http://192.168.95.5:6080/",
       caldera:  "http://192.168.90.250:8888/"
     }
@@ -611,4 +611,4 @@ <h1>GRFICSv3</h1>
     </div>
 
   </body>
-</html>
+</html>