feat: add fetch-rs

__network/fetch-rs/README.md

@@ -0,0 +1,18 @@
+
+
+```js
+const response = fetch("http://example.com/movies.json")
+const responseJson = response.json();
+```
+
+```js
+const response = fetch(url, {
+    method: "POST", // *GET, POST, PUT, DELETE, etc.
+    headers: {
+      "Content-Type": "application/json",
+      // 'Content-Type': 'application/x-www-form-urlencoded',
+    },
+    redirect: "follow", // manual, *follow, error
+    body: JSON.stringify(data), // body data type must match "Content-Type" header
+});
+```