update circle badge URL

Author: connectdotz

README.md

@@ -1,5 +1,5 @@
 # `@react-native-community/toolbar-android`
-[![CircleCI Status](https://img.shields.io/circleci/project/github/react-native-community/toolbar-android/master.svg)](https://circleci.com/gh/react-native-community/workflows/toolbar-android/tree/master) ![Supports Android](https://img.shields.io/badge/platforms-android-lightgrey.svg) ![MIT License](https://img.shields.io/npm/l/@react-native-community/toolbar-android.svg) [![npm version](https://img.shields.io/npm/v/@react-native-community/toolbar-android.svg?style=flat)](https://www.npmjs.com/package/@react-native-community/toolbar-android) [![Lean Core Extracted](https://img.shields.io/badge/Lean%20Core-Extracted-brightgreen.svg)](https://github.com/facebook/react-native/issues/23313)
+[![CircleCI Status](https://img.shields.io/circleci/project/github/react-native-toolbar-android/toolbar-android/master.svg)](https://circleci.com/gh/react-native-community/workflows/toolbar-android/tree/master) ![Supports Android](https://img.shields.io/badge/platforms-android-lightgrey.svg) ![MIT License](https://img.shields.io/npm/l/@react-native-community/toolbar-android.svg) [![npm version](https://img.shields.io/npm/v/@react-native-community/toolbar-android.svg?style=flat)](https://www.npmjs.com/package/@react-native-community/toolbar-android) [![Lean Core Extracted](https://img.shields.io/badge/Lean%20Core-Extracted-brightgreen.svg)](https://github.com/facebook/react-native/issues/23313)
 
 ## What is it?
 A React component that wraps the Android-only [Toolbar widget](https://developer.android.com/reference/android/widget/Toolbar).