message: applicationinsights-react-js fix readme errors
diff: @@ -30,7 +30,7 @@ const browserHistory = createBrowserHistory({ basename: '' });
  var reactPlugin = new ReactPlugin();
  var appInsights = new ApplicationInsights({
  config: {
  - instrumentationKey: 'YOUR_INSTRUMENTATION_KEY_GOES_HERE'
  + instrumentationKey: 'YOUR_INSTRUMENTATION_KEY_GOES_HERE',
  extensions: [reactPlugin],
  extensionConfig: {
  [reactPlugin.identifier]: { history: browserHistory }
  @@ -46,7 +46,7 @@ class MyComponent extends React.Component {
  ...
  }
  -export default withAITracking(reactPlugin,appInsights, MyComponent);
  +export default withAITracking(reactPlugin, MyComponent);
  ```
  ## Configuration
  