Update erc20-wrapper-registry/README.md

Co-authored-by: Raphael <10075759+ra-phael@users.noreply.github.com>

Author: sudoFerraz

erc20-wrapper-registry/README.md

@@ -2,7 +2,7 @@
 
 This project aims to demonstrate a simple example of how to wrap ERC20 tokens to a compliant version of it using VioletID. It comes with a sample Factory contract, and a CompliantERC20 contract on Optimism Goerli.
 
-You can check a frontend with a live version of this demo [here](https://erc20-wrapper.violet.co/)
+You can check a frontend with a live version of this demo [here](https://erc20-wrapper.violet.co/).
 The frontend is located on the `frontend` folder, all relevant code can be found on the `frontend/pages/index.tsx` file
 
 Find all VioletID live addresses in our [docs](https://docs.violet.co).