Merge #12384: [Docs] Add version footnote to tor.md

39d2911 [Docs] Add version footnote to tor.md (Damian Williamson)

Pull request description:

  [Docs] Add version footnote to tor.md

  Added note to section 2, part -edits to `/etc/tor/torrc`- indicating this is only required for Tor version 0.2.7.0 and older, since section 3 states it is valid for Tor version 0.2.7.1 and newer. Added ref link from section 2 version footnote to section 3. Re-styled headings to work on GitHub -alternate heading style markup creation issue with numbered headings and thus headings and automatic heading links are broken-

  Ref: [Issue# 12376](bitcoin/bitcoin#12376)

  Signed-off-by: Damian Williamson \<[email protected]\>

Tree-SHA512: 439f4ccc3e196011af448b220adf26b0e653ac589bf4cfbbc276c1500c9d08f209c9d6101e4d232857779d9f25164cfb222ed30e3d63de116f9121e6ebde31c3

Author: laanwj

doc/tor.md

@@ -1,14 +1,12 @@
-TOR SUPPORT IN BITCOIN
-======================
+# TOR SUPPORT IN BITCOIN
 
 It is possible to run Bitcoin as a Tor hidden service, and connect to such services.
 
 The following directions assume you have a Tor proxy running on port 9050. Many distributions default to having a SOCKS proxy listening on port 9050, but others may not. In particular, the Tor Browser Bundle defaults to listening on port 9150. See [Tor Project FAQ:TBBSocksPort](https://www.torproject.org/docs/faq.html.en#TBBSocksPort) for how to properly
 configure Tor.
 
 
-1. Run bitcoin behind a Tor proxy
----------------------------------
+## 1. Run bitcoin behind a Tor proxy
 
 The first step is running Bitcoin behind a Tor proxy. This will already make all
 outgoing connections be anonymized, but more is possible.
@@ -34,12 +32,12 @@ In a typical situation, this suffices to run behind a Tor proxy:
 	./bitcoind -proxy=127.0.0.1:9050
 
 
-2. Run a bitcoin hidden server
-------------------------------
+## 2. Run a bitcoin hidden server
 
 If you configure your Tor system accordingly, it is possible to make your node also
 reachable from the Tor network. Add these lines to your /etc/tor/torrc (or equivalent
-config file):
+config file): *Needed for Tor version 0.2.7.0 and older versions of Tor only. For newer
+versions of Tor see [Section 3](#3-automatically-listen-on-tor).*
 
 	HiddenServiceDir /var/lib/tor/bitcoin-service/
 	HiddenServicePort 8333 127.0.0.1:8333
@@ -88,8 +86,7 @@ for normal IPv4/IPv6 communication, use:
 
 	./bitcoind -onion=127.0.0.1:9050 -externalip=57qr3yd1nyntf5k.onion -discover
 
-3. Automatically listen on Tor
---------------------------------
+## 3. Automatically listen on Tor
 
 Starting with Tor version 0.2.7.1 it is possible, through Tor's control socket
 API, to create and destroy 'ephemeral' hidden services programmatically.
@@ -115,8 +112,7 @@ which has the appropriate permissions. An alternative authentication method is t
 of the `-torpassword` flag and a `hash-password` which can be enabled and specified in 
 Tor configuration.
 
-4. Privacy recommendations
----------------------------
+## 4. Privacy recommendations
 
 - Do not add anything but bitcoin ports to the hidden service created in section 2.
   If you run a web service too, create a new hidden service for that.