Add a Documentation Page
Create a page, place it in the sidebar, and link to it.
In OINK, the content tree is the documentation sidebar. A new Markdown file becomes a new page.
Create the file
Save it as content/docs/reference/new-capability.md.
Add translations
Create new-capability.zh.md and new-capability.fr.md beside it. Keep explicit heading IDs aligned across languages.
Preview
Run hugo server, open the new page, and use the language switcher to inspect every translation.