message: fix: brew `--static` no longer valid
  Removes the usage for `--static` from OSX example due to its
  deprecation from Homebrew. Running `brew install --static glfw3`
  would result on `Error: invalid option: --static`.
diff: @@ -63,7 +63,7 @@ fn handle_window_event(window: &mut glfw::Window, event: glfw::WindowEvent) {
  Make sure you have [compiled and installed GLFW 3.x](http://www.glfw.org/docs/latest/compile.html).
  You might be able to find it on your package manager, for example on OS X:
  -`brew install --static glfw3` (you may need to run `brew tap homebrew/versions`).
  +`brew install glfw3` (you may need to run `brew tap homebrew/versions`).
  If not you can download and build the library
  [from the source](http://www.glfw.org/docs/latest/compile.html) supplied on the
  GLFW website. Note that if you compile GLFW with CMake on Linux, you will have
  