Update push mirroring page

doc/user/project/repository/mirror/push.md

@@ -79,7 +79,7 @@ To configure a mirror from GitLab to GitHub:
 1. Create a [GitHub personal access token](https://docs.github.com/en/github/authenticating-to-github/keeping-your-account-and-data-secure/creating-a-personal-access-token)
    with `public_repo` selected.
 1. Enter a **Git repository URL** with this format:
-   `https://<your_github_username>@github.com/<your_github_group>/<your_github_project>.git`.
+   `https://<your_access_token>@github.com/<github_group>/<github_project>.git`.
 1. For **Password**, enter your GitHub personal access token.
 1. Select **Mirror repository**.