title: IOS store more than one password in keychain
body: <p>in my app I can save an read fine 1 password store in the keychain using this code</p>
  
  <pre><code>// save password
  [keychainItem setObject:textFieldPassword.text forKey:(__bridge id)(kSecValueData)];
  
  //get pasword from keychain
  NSString *_password = [keychainItem objectForKey:(__bridge id)(kSecValueData)];
  </code></pre>
  
  <p>My question is: how can I store more than 1 password at a time in the keychain?</p>