Add links to original design paper and anonbib

Closes #33742

changes/ticket33742

+  o Documentation:
+    - Add links to original tor design paper and anonbib to
+      docs/HACKING/README.1st.md. Closes ticket 33742. Patch from Emily Bones.

doc/HACKING/README.1st.md

@@ -36,6 +36,13 @@ For the latest version of the code, get a copy of git, and
 $ git clone https://git.torproject.org/git/tor
 ```
 
+For a copy of Tor's original design paper, see
+[here](https://spec.torproject.org/tor-design). Note that Tor has changed in
+many ways since 2004.
+
+For a large collection of security papers, many of which are related to Tor,
+see [Anonbib's Selected Papers in Anonymity](https://www.freehaven.net/anonbib/).
+
 ## Stay in touch
 
 We talk about Tor on the `tor-talk` mailing list.  Design proposals and