message: docs: add subtopics for internationalization to PR
  Add subtopics for internationalization guide to PR.
  PR Close
diff: @@ -542,7 +542,20 @@ groups:
  'packages/compiler/src/render3/view/i18n/**',
  'packages/compiler-cli/src/extract_i18n.ts',
  'packages/localize/**',
  - 'aio/content/guide/i18n.md',
  + 'aio/content/guide/i18n-overview.md',
  + 'aio/content/guide/i18n-common.md',
  + 'aio/content/guide/i18n-common-add-package.md',
  + 'aio/content/guide/i18n-common-locale-id.md',
  + 'aio/content/guide/i18n-common-format-data-locale.md',
  + 'aio/content/guide/i18n-common-prepare.md',
  + 'aio/content/guide/i18n-common-translation-files.md',
  + 'aio/content/guide/i18n-common-merge.md',
  + 'aio/content/guide/i18n-common-deploy.md',
  + 'aio/content/guide/i18n-example.md',
  + 'aio/content/guide/i18n-optional.md',
  + 'aio/content/guide/i18n-optional-manual-source-locale.md',
  + 'aio/content/guide/i18n-optional-import-global-variants.md',
  + 'aio/content/guide/i18n-optional-manage-marked-text.md',
  'aio/content/examples/i18n/**'
  ])
  reviewers:
  