message: Add a link to docs/Projects.md to README.md
diff: @@ -35,6 +35,8 @@ your own libraries atop ggez.
  * Math integration with nalgebra
  * Some more advanced graphics options: shaders, sprite batches and render targets
  +## [Who's using ggez?](docs/Projects.md)
  +
  ## Usage
  ggez is built on the latest stable Rust compiler and distributed on
  