Update the manual for Tor Browser 11.5 release

New features:

• connect:assist - it will be available this week on TB Alpha - https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues?scope=all&state=opened&search=torconnect
• Connection test
• HTTPS-Only Mode (about:preferences#privacy)
• New bridges configuration page
• Bridges emoji identification and QRcode