readme: add emailwallet.org frontend repository

Author: saugardev

README.md

@@ -83,7 +83,7 @@ This is a simplified flow, but underneath we use many parameters to ensure secur
 <br />
 
 ## ☞ Directory structure
-This is a mono-repo that contains the circom circuits, smart contracts, the relayer and a prover server.
+This is a mono-repo that contains the circom circuits, smart contracts, the relayer and a prover server. The frontend code for emailwallet.org is located in a separate [github repository](https://github.com/zkemail/emailwallet.org).
 
 - `packages/circuits` contains the circom circuits, tests, scripts to generate zkeys, vkeys, and helper functions to generate circuit inputs.
 - `packages/contracts` contains the solidity contracts, tests, and scripts to deploy the wallet.
@@ -92,7 +92,6 @@ This is a mono-repo that contains the circom circuits, smart contracts, the rela
 - `packages/utils` contains helper functions to help parse emails, and prove circuits.
 - `packages/subgraph` indexes events generated by circuits- mainly used by the Relayer for PSI communication.
 - `packages/scripts` contains scripts to generate data for the registry contracts.
-- `packages/frontend` contains the UI to generate emails.
 
 
 ```
@@ -117,8 +116,6 @@ saved here.
 ├
 ├── /scripts            # scripts for registry contracts
 ├
-├── /frontend           # UI to generate emails
-├
 ├── /utils
 ├──── /src              # Helper functions for email parsing, proving circuits, etc.
 ├