[racket-dev] Proposal: link to source in Racket documentation

Haskell's Hackage docs are convenient in that every function description
has link to its source. For example,
http://hackage.haskell.org/package/base-4.6.0.1/docs/Prelude.html#v:map
links to
http://hackage.haskell.org/package/base-4.6.0.1/docs/src/GHC-Base.html#map,
so you can read how `map` is implemented.

Is it possible to implement the same for Racket documentation? For
example, i'd like to see
http://docs.racket-lang.org/reference/booleans.html#%28def._%28%28lib._racket%2Fbool..rkt%29._xor%29%29
linked to `xor` function in `racket/bool.rkt`.

Of course, this means publishing source code on the Web, with anchor
names for every function definition. This may not be easily feasible or
of high priority, so i propose to discuss this.