add usage example in readme

README.md

@@ -2,6 +2,18 @@
 
 An [Azalea](https://github.com/azalea-rs/azalea) plugin with useful features that will probably trigger anticheats.
 
+## Usage
+
+```rust
+async fn handle(mut bot: Client, event: azalea::Event, state: State) -> anyhow::Result<()> {
+    match event {
+        azalea::Event::Init => {
+            bot.set_anti_knockback(true);
+        }
+    }
+}
+```
+
 ## Features
 
 - Anti-knockback

src/lib.rs

@@ -1,3 +1,5 @@
+#![doc = include_str!("../README.md")]
+
 use azalea::{
     app::{App, Plugin, PreUpdate},
     ecs::prelude::*,