       </div>
        <a
          href="{{ config.base_url }}book/"
          class="title-text box-shadow button"
          >Quick Start</a
        >
      </section>
      <script src="prism.js"></script>
      <div class="hero-code">
        <pre
          data-file="main.rs"
        ><code class="language-rust">

fn pause_on_crouch(
    mut events: EventReader&ltSneakEvent&gt,
    mut board: ResMut&ltLifeBoard&gt,
    mut layers: Query&lt&mut EntityLayer&gt,
) {
    for event in events.iter() {
       