document utf8 switch in client.ts

demo/client.ts

@@ -149,7 +149,14 @@ function createTerminal(): void {
 }
 
 function runRealTerminal(): void {
+  /**
+   * The demo defaults to string transport by default.
+   * To run it with UTF8 binary transport, swap comment on
+   * the lines below. (Must also be switched in server.js)
+   */
   term.loadAddon(new AttachAddon(socket));
+  //term.loadAddon(new AttachAddon(socket, {inputUtf8: true}));
+
   term._initialized = true;
 }