chore(docs): updated docs with jsdom changes (#12831)

CHANGELOG.md

@@ -8,6 +8,7 @@
 
 ### Chore & Maintenance
 
+- `[docs]` Updated docs to indicate that `jest-environment-jsdom` is a separate package [#12828](https://github.com/facebook/jest/issues/12828)
 - `[jest-haste-map]` Bump `walker` version ([#12324](https://github.com/facebook/jest/pull/12324))
 
 ### Performance

docs/TutorialjQuery.md

@@ -59,8 +59,14 @@ test('displays a user after a click', () => {
 });
 ```
 
-The function being tested adds an event listener on the `#button` DOM element, so we need to set up our DOM correctly for the test. Jest ships with `jsdom` which simulates a DOM environment as if you were in the browser. This means that every DOM API that we call can be observed in the same way it would be observed in a browser!
-
 We are mocking `fetchCurrentUser.js` so that our test doesn't make a real network request but instead resolves to mock data locally. This ensures that our test can complete in milliseconds rather than seconds and guarantees a fast unit test iteration speed.
 
+Also, the function being tested adds an event listener on the `#button` DOM element, so we need to set up our DOM correctly for the test. `jsdom` and the `jest-environment-jsdom` package simulate a DOM environment as if you were in the browser. This means that every DOM API that we call can be observed in the same way it would be observed in a browser!
+
+To get started with the JSDOM [test environment](Configuration.md#testenvironment-string), the `jest-environment-jsdom` package must be installed if it's not already:
+
+```bash npm2yarn
+npm install --save-dev jest-environment-jsdom
+```
+
 The code for this example is available at [examples/jquery](https://github.com/facebook/jest/tree/main/examples/jquery).

website/versioned_docs/version-28.0/TutorialjQuery.md

@@ -59,8 +59,14 @@ test('displays a user after a click', () => {
 });
 ```
 
-The function being tested adds an event listener on the `#button` DOM element, so we need to set up our DOM correctly for the test. Jest ships with `jsdom` which simulates a DOM environment as if you were in the browser. This means that every DOM API that we call can be observed in the same way it would be observed in a browser!
-
 We are mocking `fetchCurrentUser.js` so that our test doesn't make a real network request but instead resolves to mock data locally. This ensures that our test can complete in milliseconds rather than seconds and guarantees a fast unit test iteration speed.
 
+Also, the function being tested adds an event listener on the `#button` DOM element, so we need to set up our DOM correctly for the test. `jsdom` and the `jest-environment-jsdom` package simulate a DOM environment as if you were in the browser. This means that every DOM API that we call can be observed in the same way it would be observed in a browser!
+
+To get started with the JSDOM [test environment](Configuration.md#testenvironment-string), the `jest-environment-jsdom` package must be installed if it's not already:
+
+```bash npm2yarn
+npm install --save-dev jest-environment-jsdom
+```
+
 The code for this example is available at [examples/jquery](https://github.com/facebook/jest/tree/main/examples/jquery).

website/versioned_docs/version-28.1/TutorialjQuery.md

@@ -59,8 +59,14 @@ test('displays a user after a click', () => {
 });
 ```
 
-The function being tested adds an event listener on the `#button` DOM element, so we need to set up our DOM correctly for the test. Jest ships with `jsdom` which simulates a DOM environment as if you were in the browser. This means that every DOM API that we call can be observed in the same way it would be observed in a browser!
-
 We are mocking `fetchCurrentUser.js` so that our test doesn't make a real network request but instead resolves to mock data locally. This ensures that our test can complete in milliseconds rather than seconds and guarantees a fast unit test iteration speed.
 
+Also, the function being tested adds an event listener on the `#button` DOM element, so we need to set up our DOM correctly for the test. `jsdom` and the `jest-environment-jsdom` package simulate a DOM environment as if you were in the browser. This means that every DOM API that we call can be observed in the same way it would be observed in a browser!
+
+To get started with the JSDOM [test environment](Configuration.md#testenvironment-string), the `jest-environment-jsdom` package must be installed if it's not already:
+
+```bash npm2yarn
+npm install --save-dev jest-environment-jsdom
+```
+
 The code for this example is available at [examples/jquery](https://github.com/facebook/jest/tree/main/examples/jquery).