Update quick-start.mdx

Author: freddmannen

docs/flashbots-protect/quick-start.mdx

@@ -67,7 +67,7 @@ You can also add Flashbots Protect RPC manually in MetaMask by following these s
 4. Click “Save.”
 5. Click “Switch to Flashbots Protect”
 
-![mm_rpc](/img/mm_rpc.jpg)
+![mm_rpc](/img/mm_rpc.png)
 
 Below is the list of Flashbots Protect RPCs we currently support across Ethereum mainnet and testnets: