New wiki page about tying the knot in GHC

[Edward Z. Yang]

Yep, updated, thanks.

Edward

Excerpts from Ben Gamari's message of 2016-05-17 00:16:55 -0700:
> "Edward Z. Yang" <ezyang at mit.edu> writes:
> 
> > Hello all,
> >
> > I've written a new wiki page about how knot tying works in
> > GHC:
> >
> >     https://ghc.haskell.org/trac/ghc/wiki/Commentary/Compiler/TyingTheKnot
> >
> This is quite useful! Thanks for writing it down. A few points:
> 
> It might be nice if it defined HPT and EPS a bit more concretely (at
> least expand the acronyms, ideally including a bit of text defining
> their roles in the compiler and why there is two of them).
> 
> You say "we produce TyCons and another type checking entities for them".
> Should this read "other type checking entities for them"?
> 
> Otherwise it looks good to me.
> 
> Cheers,
> 
> - Ben