update package.json

example-redux/package.json

   "version": "0.0.1",
   "private": true,
   "scripts": {
-    "start": "watchman watch-del-all && adb reverse tcp:8081 tcp:8081 && node node_modules/react-native/local-cli/cli.js start"
+    "start": "watchman watch-del-all && adb reverse tcp:8081 tcp:8081 && node node_modules/react-native/local-cli/cli.js start",
+    "install:android": "pushd android && ./gradlew installDebug && popd"
   },
   "dependencies": {
     "react-native-navigation": "file:../",