Meta: having a doc/guide about how to write page

[AugustinMauroy]

We need to create a comprehensive documentation guide similar to ADDING_LEARN_PAGE but extended to cover all content on the nodejs.dev website.

The documentation should include the following sections:

1. File Location and Structure
   • What does the location of the markdown file reflect?
2. Front Matter Requirements
   • Understand and require front matter (if adding a blog post, include the author in apps/site/authors.json).
3. Navigation Entries
   • If adding a learn or about page, how to add an entry in the navigation.
4. React Components and Metadata
   • Which React component is accessed in the case of MDX and which metadata is included (e.g., displayName).

[AugustinMauroy]

i had started to write a first draft.

https://github.com/nodejs/nodejs.org/tree/meta-learn