How to add Notifications for tasks in ToDoLite Couchbase app in Android Studio

I’m using The ToDoList with Couchbase Lite application for Android Studio here https://github.com/couchbaselabs/ToDoLite-Android and I want to add Notifications to this so that I get notified for tasks

Why are you working with 1.x version of Couchbase Lite ? Please refer to updated 2.x version of tutorials available here