Add Amazon Simple Notification Service to Adopt in Platforms

[BenL-M]

Summary

Amazon SNS is a cloud based messaging service for application-to-application and application-to-person communication.
https://aws.amazon.com/sns/?whats-new-cards.sort-by=item.additionalFields.postDateTime&whats-new-cards.sort-order=desc

Opinion(s)

The GDP teams use SNS to manage notifications and messages between the supply chain and 3rd parties.

Teams interested in this tech

The GDP teams.

[pburls]

Hey @BenL-M I think AWS SNS should fall under Platforms and not Tools.

Here are the quadrant descriptions as per the README.md

Platforms - What we run our software systems on and where we persist our data (Operations)
Tools - What we use on the side to improve the way we develop and operate our systems (Dev & Ops)

[BenL-M]

Agreed - I will change the issue title

[jpjavafun]

One thing that we be good for teams that are looking at the radar, is a little detail about where to go next - for example a platform team dl.

Also I was thinking it might be good for the AWS technologies to make sure that AWS is in the title.