docs(contributing): add lint:fix step

CONTRIBUTING.md

@@ -46,10 +46,11 @@ Before submitting a pull request back to the main repository, please make sure y
 
 1. Pull request base branch is set to `main`. All pull requests should be forked from and merged back to `main`
 2. Run `npm test` to check the code adheres to the defined ESLint style and that it passes the Jest tests
-3. Run `npm run lint:prettier:fix` to run the Prettier code formatter over the code
-4. Run `npm run lint:licenses` if adding or updating production dependencies to check they use permissive licenses
+3. Run `npm run lint:fix` to automatically fix any ESLint errors
+4. Run `npm run lint:prettier:fix` to automatically fix any Prettier errors
+5. Run `npm run lint:licenses` if adding or updating production dependencies to check they use permissive licenses
 
-Steps 2. and 4. are automatically run by a pre-commit hook added by [Husky](https://typicode.github.io/husky/#/).
+Steps 2. and 5. are automatically run by a pre-commit hook added by [Husky](https://typicode.github.io/husky/#/).
 
 ## Issues