message: Add note about this release being pre-alpha
diff: @@ -20,6 +20,10 @@ goal means that it doesn't have many features like tabs or scroll back as in
  other terminals. Instead, it is expected that users of Alacritty make use of a
  terminal multiplexer such as [`tmux`](https://github.com/tmux/tmux).
  +This initial release should be considered as pre-alpha software--it will have
  +issues. Once Alacritty reaches an alpha level of readiness, precompiled binaries
  +will be provided for supported operating systems.
  +
  ## Blog Posts
  There is a forthcoming announcement post the week of Jan 2, 2017.
  