Add some badges

Kudo · web-flow · commit 027a027690a9 · 2020-03-03T23:29:28.000+08:00
diff --git a/README.md b/README.md
@@ -1,2 +1,5 @@
+[![npm version](https://badge.fury.io/js/react-native-cli-plugin-benchmark.svg)](https://badge.fury.io/js/react-native-cli-plugin-benchmark)
+![GitHub Actions CI](https://github.com/Kudo/react-native-cli-plugin-benchmark/workflows/Build/badge.svg)
+
 # react-native-cli-plugin-benchmark
 React Native CLI Plugin for Benchmark Regression
