Consider adding markdown lint GitHub action

[joachimmetz]

Consider adding markdown lint GitHub action to catch markdown formatting errors early

[obsidianforensics]

Along with the linter, it would be good to decide on some style guide items for it to enforce.

A few I've been thinking of:

• line length & wrapping
• code formatting convention (Markdown Syntax Throughout the Wiki #43)
• likely more? very open to suggestions here

I've also been noticing some differences between GitHub's previews of the Markdown pages and what gets generated for the live site. I believe Material for MkDocs (which we use) uses python-markdown to convert the Markdown files to HTML, so it would be good to explore the differences between that library and how GitHub renders .mk files to avoid confusion/frustration when contributors make edits that don't render as they expect.

[joachimmetz]

Experimenting with dead link checks #51

This also raises a question: what do we do with dead links and out dated information e.g. #52

I propose:

• to remove references to dead links if no alternative is available
• to remove out dated information

Also see: #54

[joachimmetz]

@obsidianforensics Are there tools to automatically (re)format markdown? That might be beneficial to keep things consistent