Sharing Endless Key App: new feature

[jofilizola]

Document: https://docs.google.com/document/d/10OZFjsbOeJhGE82Ak_3LsfL0rSYBenm5GBGohLL0-Ag/edit#heading=h.typri1d6wks0)

Sharing the app is an effective way to help teachers with the mouth-to-mouth referral. This is not related to sharing individual resource link.

• Sharing the Key will help with organic growth and shareability of our product.
• We can use we can use the system-level sharing feature (see example of how it looks like on iPhone) as a first iteration
• The question that I have is: can we change the pre-made subject and text the goes with link?
  

Sketch of dialog (can come later). E-mail is sent to recipients with brief descriptions of benefits and link to:
A. Online Instance (with prompt to download the app), or
B. Link to system App store (edited)