http://gpp6nwvsps43b3mfacsh433uroo6uyjvvpr6tgj4jh4n5ngxt7rqbvid.onion/posts/introduction-to-tor-browser.html
The other thing you can do is to look up the bridge on the Tor Project relay search page . To maintain the secrecy of bridge IP addresses, you cannot search by IP address. However, you can enter the 40-digit fingerprint.