feat: add __network/html-crawl-parse, __wasm/wasmtime-serde-demo

__wasm/wasmtime-serde-demo/docs/examples/guest/src/lib.rs

@@ -0,0 +1,20 @@
+use serde::{Deserialize, Serialize};
+use wasmtime_serde_guest::*;
+
+#[derive(Debug, Deserialize, Serialize)]
+struct Human {
+	name: String,
+	age: u8,
+}
+
+#[export_fn]
+fn add(a: i32, b: i32) -> i32 {
+	let human = get_human();
+	println(format!("{human:?}"));
+	a + b
+}
+
+import_fn!(
+	fn get_human() -> Human;
+	fn println(msg: String);
+);