credit PEP as source of Tor process
svn:r9712
remain the canonical documentation for the Tor protocol: no proposal is
ever the canonical documentation for an implemented feature.
+ (This process is pretty similar to the Python Enhancement Process, with
+ the major exception that Tor proposals get re-integrated into the specs
+ after implementation, whereas PEPs _become_ the new spec.)
+
{It's still okay to make small changes directly to the spec if the code
can be
written more or less immediately, or cosmetic changes if no code change is