Tech: deploy and verify on Mubai

**User Story / Job to be Done / Problem**
As a develope, I want to be able to cheaply and quickly test the latest developments. 

**Potential solution ideas**
Deploy on Mumbai and validate using some hardhat magic and Polygonscan. (mumbai.polygonscan.com)

If this works, update the ReadMe.

**Additional context**
Add any other context or screenshots about the feature request here.
