Docs: Update WalletConnect app readme

apps/wallet-connect/README.md

@@ -1,7 +1,13 @@
-# Walletconnect Safe App
+# Deprecated! ⚠️
+
+This app is deprecated and will no longer be supported. Safe Wallet now has a native WalletConnect implementation.
+
+## Walletconnect Safe App
 
 Safe Wallet integration for version 1 & 2.
 
 ## Config env variables
 
 - Add `REACT_APP_WALLETCONNECT_PROJECT_ID` required for walletconnect version 2 integration, see [walletconnect docs](https://docs.walletconnect.com/2.0/javascript/sign/installation#1-obtain-project-id)
+
+This variable is currently not being passed in the GitHub secrets as the app is deprecated.