LICENCE file for V4

[richard-stafflink]

There is no LICENCE file on the main branch

This page mentions "free" to only certain entities:
https://www.serverless.com/framework/docs/guides/upgrading-v4

As we announced at the end of 2023, Serverless Framework CLI will continue to be free for individual developers and small businesses, but will no longer be free for Organizations that have greater than $2M in annual revenue. These Organizations will require a commercial Subscription.

But what does that mean for the source code?