Add missing import to docs

CHANGELOG.md

@@ -45,6 +45,7 @@
 - `[babel-plugin-jest-hoist]`: Migrate to TypeScript ([#7898](https://github.com/facebook/jest/pull/7898))
 - `[@jest/core]` Create new package, which is `jest-cli` minus `yargs` and `prompts` ([#7696](https://github.com/facebook/jest/pull/7696))
 - `[@jest/transform]`: Migrate to TypeScript ([#7918](https://github.com/facebook/jest/pull/7918))
+- `[docs]` Add missing import to docs ([#7928](https://github.com/facebook/jest/pull/7928))
 
 ### Performance
 

docs/Es6ClassMocks.md

@@ -155,6 +155,8 @@ Calls to jest.mock are hoisted to the top of the code. You can specify a mock la
 
 ```javascript
 import SoundPlayer from './sound-player';
+import SoundPlayerConsumer from './sound-player-consumer';
+
 jest.mock('./sound-player');
 
 describe('When SoundPlayer throws an error', () => {

website/versioned_docs/version-23.x/Es6ClassMocks.md

@@ -156,6 +156,8 @@ Calls to jest.mock are hoisted to the top of the code. You can specify a mock la
 
 ```javascript
 import SoundPlayer from './sound-player';
+import SoundPlayerConsumer from './sound-player-consumer';
+
 jest.mock('./sound-player');
 
 describe('When SoundPlayer throws an error', () => {

website/versioned_docs/version-24.0/Es6ClassMocks.md

@@ -156,6 +156,8 @@ Calls to jest.mock are hoisted to the top of the code. You can specify a mock la
 
 ```javascript
 import SoundPlayer from './sound-player';
+import SoundPlayerConsumer from './sound-player-consumer';
+
 jest.mock('./sound-player');
 
 describe('When SoundPlayer throws an error', () => {