Improve Connecting Wasabi Wallet to BTCPay Server

[uhlhosting]

I could not find the information I was looking for on the "Connecting Wasabi Wallet to BTCPay Server" page (/WasabiWallet/).

Also here way too much have changed, the Step by step images / content have significantly changed, including the main changes in Wasabi in relation to external connections, the docs mention P2P protocol, that seems was replaced by RPC protocol for Wasabi, that needs to be tested and updated, I could not get the connection to show me the message of successfully connected yet, status was Ok, yet there were surely something missing.