Merge branch 'docs-update-external-cicd' into 'master'

Update GitHub integration docs

See merge request gitlab-org/gitlab!24632

doc/ci/ci_cd_for_external_repos/github_integration.md

@@ -33,11 +33,9 @@ repositories:
    your project, update commit statuses, and create a web hook to notify
    GitLab of new commits.
 
-1. In GitLab create a **CI/CD for external repo** project and select
+1. In GitLab, go to the [new project page](../../gitlab-basics/create-project.md#create-a-project-in-gitlab), select the **CI/CD for external repo** tab, and then click
    **GitHub**.
 
-   ![Create project](img/github_omniauth.png)
-
 1. Paste the token into the **Personal access token** field and click **List
    Repositories**. Click **Connect** to select the repository.
 
@@ -91,7 +89,7 @@ To manually enable GitLab CI/CD for your repository:
    https://gitlab.com/api/v4/projects/<NAMESPACE>%2F<PROJECT>/mirror/pull?private_token=<PERSONAL_ACCESS_TOKEN>
    ```
 
-   ![Create web hook](img/github_push_webhook.png)
+   Select the **Let me select individual events** option, then check the **Pull requests** and **Pushes** checkboxes. These settings are needed for [pipelines for external pull requests](index.md#pipelines-for-external-pull-requests).
 
 1. In GitHub add a `.gitlab-ci.yml` to configure GitLab CI/CD.