Merge pull request #21 from DavidYang2149/develop-#9-update-readme

[Feature] Write a library manual (#9)

Author: DavidYang2149

README.md

@@ -1 +1,22 @@
-# jest-next-dynamic-ts
+# jest-next-dynamic-ts
+
+Inspired by [jest-next-dynamic](https://github.com/FormidableLabs/jest-next-dynamic).
+
+Added TypeScript based on jest-next-dynamic.
+
+# Usage
+
+```js
+// This will mock `next/dynamic`, so make sure to import it before any of your
+// components.
+import preloadAll from "jest-next-dynamic-ts";
+// This component can have dynamic imports anywhere in its rendered tree,
+// including nested dynamic imports.
+import SomeComponent from "./SomeComponent";
+ 
+beforeAll(async () => {
+  await preloadAll();
+});
+ 
+// Your tests here!
+```