message: update FAQ with a link
diff: @@ -8,9 +8,11 @@ re-executed after any given change is based on the algorithm used in
  rustc. Michael Woerister and I first described the rustc algorithm in
  terms of two colors, red and green, and hence we called it the
  "red-green algorithm". This made me think of the New Mexico State
  -Question --- "Red or green?" --- which refers to salsa. Although this
  -version no longer uses colors (we borrowed revision counters from
  -Glimmer, instead), I still like the name.
  +Question --- ["Red or green?"][nm] --- which refers to chile
  +(salsa). Although this version no longer uses colors (we borrowed
  +revision counters from Glimmer, instead), I still like the name.
  +
  +[nm]: http://www.sos.state.nm.us/Kids_Corner/State_Symbols.aspx#question
  ## What is the relationship between salsa and an Entity-Component System (ECS)?
  