Update 6 readmes to index

app/helpers/search_helper.rb

app/views/profiles/keys/index.html.haml

app/views/shared/deploy_keys/_form.html.haml

app/views/shared/deploy_keys/_project_group_form.html.haml

doc/README.md

doc/administration/auth/index.md

doc/administration/compliance.md

doc/administration/configure.md

doc/administration/geo/replication/usage.md

doc/administration/index.md

doc/administration/troubleshooting/postgresql.md

doc/ci/examples/laravel_with_gitlab_and_envoy/index.md

doc/ci/review_apps/index.md

doc/ci/ssh_keys/index.md

doc/development/README.md

doc/development/changelog.md

doc/development/code_review.md

doc/development/contributing/merge_request_workflow.md

doc/development/dangerbot.md

doc/development/documentation/index.md