Add axum example

Cargo.toml

@@ -19,3 +19,6 @@ jive = { git = "https://git.asonix.dog/safe-async/jive", features = [
   "tokio-io-compat",
 ] }
 tokio = { version = "1", default-features = false }
+
+[dev-dependencies]
+axum = "0.4.8"

examples/axum.rs

@@ -0,0 +1,13 @@
+async fn hello() -> &'static str {
+    "hewwo mr obama"
+}
+
+fn main() -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
+    jive::block_on(async move {
+        let app = axum::Router::new().route("/", axum::routing::get(hello));
+
+        hyperjive::server::builder(([0, 0, 0, 0], 8080)).await?.serve(app.into_make_service()).await?;
+
+        Ok(())
+    })?
+}