The option will be found at the bottom of the note creation page, and since this is Google, the locations will auto-suggest places nearby when you start typing. You can add a time or location-based action for any note you take. And, when the time (or place) comes, the reminder will pop up in the notification tray on your Android device. If you don't have the time to take care of whatever it is, you can delay the reminder for an hour, or reset the time to a later date.
The app has also made it easier to switch between multiple accounts using the left-side navigation drawer, in case you want to keep notes separated. Also, it has been made easier to add photos to a note.
The update has already hit the web and the Chrome app, but it is rolling out to Android, and we haven't seen it hit our devices just yet. It should be coming soon though.
Download: Google Keep
source: Official Android Blog