Address vale linter issues

doc/administration/docs_self_host.md

doc/administration/logs/tracing_correlation_id.md

doc/administration/monitoring/prometheus/index.md

doc/api/settings.md

doc/ci/environments/protected_environments.md

doc/ci/migration/jenkins.md

doc/ci/pipelines/settings.md

doc/development/changelog.md

doc/development/cicd/templates.md

doc/development/database/pagination_guidelines.md

doc/development/fe_guide/graphql.md

doc/development/i18n/merging_translations.md

doc/development/refactoring_guide/index.md

doc/development/snowplow/index.md

...e_group_observability/dashboards/stage_group_dashboard.md

doc/development/testing_guide/review_apps.md

doc/development/work_items_widgets.md