docs(examples): Add klau.si example
| [fundon.me](https://fundon.me/) | https://github.com/fundon/fundon.github.io |
| [rust-gamedev.github.io](https://rust-gamedev.github.io) | https://github.com/rust-gamedev/rust-gamedev.github.io |
| [arewegameyet.rs](http://arewegameyet.rs) | https://github.com/rust-gamedev/arewegameyet |
+| [klau.si](https://klau.si) | https://github.com/klausi/klau.si |
