update to readme.md

Author: Muhammet Ozturk

README.md

@@ -63,7 +63,7 @@ const devices = [
  return (
  <div>
  ...
- <ElementBasedDeviceDedector onChangeType={this.handleChangeType}/>
+ <ElementBasedDeviceDedector onChangeType={this.handleChangeType} devices={devices}/>
  </div>
  );
  }