message: Fix clone URL in deb install instructions
diff: @@ -54,7 +54,7 @@ makepkg -isr
  Using `cargo deb`, you can create and install a deb file.
  ```sh
  -git clone git@github.com:jwilm/alacritty.git
  +git clone https://github.com/jwilm/alacritty.git
  cd alacritty
  cargo install cargo-deb
  cargo deb --install
  