message: Fix appveyor badge link
diff: @@ -2,7 +2,7 @@ Alacritty
  =========
  [![Travis build Status](https://travis-ci.org/jwilm/alacritty.svg?branch=master)](https://travis-ci.org/jwilm/alacritty)
  -[![Appveyor build Status](https://ci.appveyor.com/api/projects/status/sjq7ya5xf3hsa59s?svg=true)](https://ci.appveyor.com/project/zacps/alacritty)
  +[![Appveyor build Status](https://ci.appveyor.com/api/projects/status/github/jwilm/alacritty?svg=true)](https://ci.appveyor.com/project/jwilm/alacritty)
  Alacritty is the fastest terminal emulator in existence. Using the GPU for
  rendering enables optimizations that simply aren't possible in other emulators.
  