Update quick-start.mdx (#642)

proxy via tor

Author: yizhang0901

docs/flashbots-protect/quick-start.mdx

@@ -80,3 +80,7 @@ Below is the list of Flashbots Protect RPCs we currently support across Ethereum
 ## Stuck transactions
 
 Please see our [stuck transactions guide](/flashbots-protect/stuck_transactions) for help with dealing with transactions that are "stuck" as pending.
+
+## Proxy via Tor
+
+Protect RPC supports access through the Tor network, allowing users to maintain privacy and anonymity. To access through Tor, use http://protectfbnoqyfgo3t5ouw3c7odp55qqoxnfdd7u24nzz5pkbclbzzyd.onion instead of https://rpc.flashbots.net