docs: fix typo in README.md (#657)

AbdellahRsmouki · web-flow · commit f81ebc39d595 · 2021-01-25T10:02:52.000+01:00
The jest.config file extention should be ".json" instead of  ".js"
diff --git a/README.md b/README.md
@@ -64,7 +64,7 @@ yarn add --dev @testing-library/jest-native
 npm install --save-dev @testing-library/jest-native
 ```
 
-Then automatically add it to your jest tests by using `setupFilesAfterEnv` option in your Jest configuration (it's usually located either in `package.json` under `"jest"` key or in a `jest.config.js` file):
+Then automatically add it to your jest tests by using `setupFilesAfterEnv` option in your Jest configuration (it's usually located either in `package.json` under `"jest"` key or in a `jest.config.json` file):
 
 ```json
 {

Original file line number	Diff line number	Diff line change
`@@ -64,7 +64,7 @@ yarn add --dev @testing-library/jest-native`
`64`	`64`	`npm install --save-dev @testing-library/jest-native`
`65`	`65`	```
`66`	`66`
`67`		-Then automatically add it to your jest tests by using `setupFilesAfterEnv` option in your Jest configuration (it's usually located either in `package.json` under `"jest"` key or in a `jest.config.js` file):
	`67`	+Then automatically add it to your jest tests by using `setupFilesAfterEnv` option in your Jest configuration (it's usually located either in `package.json` under `"jest"` key or in a `jest.config.json` file):
`68`	`68`
`69`	`69`	```json
`70`	`70`	`{`