Update index.html

Author: rajnisht7

py/visdom/static/index.html

@@ -16,6 +16,7 @@
     <meta name="viewport" content="width=device-width, initial-scale=1">
     <meta http-equiv="Content-Security-Policy"
         content="default-src 'self';
+                 script-src 'self' 'unsafe-inline';
                  style-src 'self' 'unsafe-inline';
                  connect-src 'self' ws: wss:;
                  img-src 'self' data: blob:;