message: doc: update -proxy, -onion and -onlynet info in tor.md
  Improve the description of what these options do with regards to
  tor or network traffic.
  Some of the wording is from a laanwj review in PR 19358.
diff: @@ -23,10 +23,15 @@ outgoing connections, but more is possible.
  -proxy=ip:port Set the proxy server. If SOCKS5 is selected (default), this proxy
  server will be used to try to reach .onion addresses as well.
  + You need to use -noonion or -onion=0 to explicitly disable
  + outbound access to onion services.
  -onion=ip:port Set the proxy server to use for Tor onion services. You do not
  - need to set this if it's the same as -proxy. You can use -noonion
  + need to set this if it's the same as -proxy. You can use -onion=0
  to explicitly disable access to onion services.
  + Note: Only the -proxy option sets the proxy for DNS requests;
  + with -onion they will not route over Tor, so use -proxy if you
  + have privacy concerns.
  -listen When using -proxy, listening is disabled by default. If you want
  to run an onion service (see next section), you'll need to enable
  @@ -40,7 +45,11 @@ outgoing connections, but more is possible.
  -onlynet=onion Make outgoing connections only to .onion addresses. Incoming
  connections are not affected by this option. This option can be
  specified multiple times to allow multiple network types, e.g.
  - ipv4, ipv6, or onion.
  + ipv4, ipv6 or onion. If you use this option with values other
  + than onion you *cannot* disable onion connections; outgoing onion
  + connections will be enabled when you use -proxy or -onion. Use
  + -noonion or -onion=0 if you want to be sure there are no outbound
  + onion connections over the default proxy or your defined -proxy.
  In a typical situation, this suffices to run behind a Tor proxy:
  