Merge branch '276207-vale-substitutions-warning' into 'master'

doc/push_rules/push_rules.md

doc/raketasks/migrate_snippets.md

doc/security/webhooks.md

doc/topics/git/lfs/index.md

doc/topics/git/lfs/migrate_from_git_annex_to_git_lfs.md

doc/topics/git/lfs/migrate_to_git_lfs.md

doc/topics/git/partial_clone.md

doc/topics/gitlab_flow.md

doc/university/training/topics/getting_started.md

doc/university/training/topics/unstage.md

doc/user/project/integrations/jira_integrations.md

...ject/pages/getting_started/pages_forked_sample_project.md

doc/user/project/pages/lets_encrypt_for_gitlab_pages.md

doc/user/project/repository/index.md

doc/user/project/repository/web_editor.md

doc/user/snippets.md