[Translation MR review follow-up] Investigate quotation mark placement

follow up:

• https://gitlab.com/gitlab-com/localization/tech-docs-forked-projects/prod/gitlab/-/merge_requests/104#note_2628388860
• https://gitlab.com/gitlab-com/localization/tech-docs-forked-projects/prod/gitlab/-/merge_requests/104#note_2630432240

Comment thread was resolved. Logging this issue to document the solution moving forward.

• files:
  • doc-locale/ja-jp/user/markdown.md