Offline Reader View

With Offline reader view, you can save any article on the web and access them whenever you want even when your device is not connected to the internet. To create a reader view,

Go to any webpage and tap/click 'Share' ( or )
Select Notebook app from the Share Extension screen

If you already have any URL saved inside a note,

Android, iOS:

Tap on the respective link and select 'Create Link card'

Mac, Windows, Web and Linux:

Right Click the note and select 'Create Link Card'

To know more about it, click here