add new plugins references to README.md (#954)

README.md

diff --git a/README.md b/README.md
index fae41f7..8cb4e83 100644
--- a/README.md
+++ b/README.md
@@ -43,7 +43,8 @@
 | [battery](./packages/battery/) | [![pub package](https://img.shields.io/pub/v/battery.svg)](https://pub.dartlang.org/packages/battery) |
 | [camera](./packages/camera/) | [![pub package](https://img.shields.io/pub/v/camera.svg)](https://pub.dartlang.org/packages/camera) |
 | [connectivity](./packages/connectivity/) | [![pub package](https://img.shields.io/pub/v/connectivity.svg)](https://pub.dartlang.org/packages/connectivity) |
-| [device info](./packages/device_info/) | [![pub package](https://img.shields.io/pub/v/device_info.svg)](https://pub.dartlang.org/packages/device_info) |
+| [device_info](./packages/device_info/) | [![pub package](https://img.shields.io/pub/v/device_info.svg)](https://pub.dartlang.org/packages/device_info) |
+| [google_maps_flutter](./packages/google_maps_flutter) | [![pub package](https://img.shields.io/pub/v/google_maps_flutter.svg)](https://pub.dartlang.org/packages/google_maps_flutter) |
 | [google_sign_in](./packages/google_sign_in/) | [![pub package](https://img.shields.io/pub/v/google_sign_in.svg)](https://pub.dartlang.org/packages/google_sign_in) |
 | [image_picker](./packages/image_picker/) | [![pub package](https://img.shields.io/pub/v/image_picker.svg)](https://pub.dartlang.org/packages/image_picker) |
 | [local_auth](./packages/local_auth/) | [![pub package](https://img.shields.io/pub/v/local_auth.svg)](https://pub.dartlang.org/packages/local_auth) |
@@ -55,6 +56,7 @@
 | [shared_preferences](./packages/shared_preferences/) | [![pub package](https://img.shields.io/pub/v/shared_preferences.svg)](https://pub.dartlang.org/packages/shared_preferences) |
 | [url_launcher](./packages/url_launcher/) | [![pub package](https://img.shields.io/pub/v/url_launcher.svg)](https://pub.dartlang.org/packages/url_launcher) |
 | [video_player](./packages/video_player/) | [![pub package](https://img.shields.io/pub/v/video_player.svg)](https://pub.dartlang.org/packages/video_player) |
+| [webview_flutter](./packages/webview_flutter/) | [![pub package](https://img.shields.io/pub/v/webview_flutter.svg)](https://pub.dartlang.org/packages/webview_flutter) |
 | | |
 | **FlutterFire Plugins** |  |
 | [cloud_firestore](./packages/cloud_firestore/) | [![pub package](https://img.shields.io/pub/v/cloud_firestore.svg)](https://pub.dartlang.org/packages/cloud_firestore)