=== User story
As a reading list user, I want to be know when and how I will be able to keep reading lists saved on my app.
=== Proposed elements
**A. Onboarding 'card' advising the new feature **
- Dismissable card is extensible and may potentially be shown in multiple places - within the Explore feed, in the reading lists 'My lists' screen, Login
**B. Promote reading list as a new benefit on creating a user profile**
- Add short list of benefits in the login/create user screen
**C. App-wide installation onboarding screens**
Add this feature as part of app-wide onboarding screens.
**D. FAQs that may be linked to from onboarding UI**
Update the existing FAQs page with info on reading list sync, including more info for power users (e.g., those with multiple devices or accounts). Since this is content-only, it has been broken out into into a separate ticket T165049).