Update README.md

README.md

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 # react-native-fast-jest
-Use @swc/jest in React Native for faster testing!
+
+Run testing 3x faster than babel-jest!
+
+Internally using @swc/jest
+
+<table>
+  <tr>
+    <th>babel-jest (61s)</th>
+    <th>react-native-fast-jest (23s)</th>
+  </tr>
+  <tr>
+<td>
+
+<img width="385" alt="Screenshot 2024-02-09 at 1 30 58 AM" src="https://github.com/changwoolab/react-native-fast-jest/assets/64240134/f07ecabf-76b6-4417-88b9-747f5c7d97f5">
+
+</td>
+<td>
+
+<img width="392" alt="Screenshot 2024-02-09 at 1 27 52 AM" src="https://github.com/changwoolab/react-native-fast-jest/assets/64240134/7360d9d1-3bd0-45ec-a555-e0ea8f8dafbf">
+
+</td>
+  </tr>
+</table>
+
+
+## Installation
+```
+npm i --save-dev react-native-fast-jest
+```
+## Configuration
+
+1. You need to configure `.swcrc` like below.
+```json
+{
+    "jsc": {
+        "parser": {
+            "syntax": "typescript",
+            "jsx": true,
+            "tsx": true,
+            "dynamicImport": false,
+            "privateMethod": false,
+            "functionBind": false,
+            "exportDefaultFrom": false,
+            "exportNamespaceFrom": false,
+            "decorators": false,
+            "decoratorsBeforeExport": false,
+            "topLevelAwait": false,
+            "importMeta": false,
+            "preserveAllComments": false
+        },
+        "transform": null,
+        "target": "es5",
+        "loose": true,
+        "externalHelpers": false,
+        "keepClassNames": false
+    },
+    "isModule": true
+}
+```
+
+2. Configure jest config trasform
+```js
+transform: {
+  '^.+\\.(t|j)sx?$': 'react-native-fast-jest',
+},
+```
+
+## I have error when jest.spyOn 
+`TypeError: Cannot redefine property` or `TypeError: Cannot read properties of undefined`
+
+You need to do mock as a esModule
+```js
+jest.mock('./path_to_spy', () => {
+    return {
+        __esModule: true, // <- Important!
+        ...jest.requireActual('./path_to_spy'),
+    };
+});
+```