Early attempt at markdown rendering

[mcon]

Fairly early days with this PR, but most commonly used markdown supported, notable items not supported:

• Abbreviations
• Definition lists
• Auto links
• Footers

Example output:

Questions / TODOs:

• Would be nice to split test markdown into separate testcases
• Are you happy with the rendering of the different document elements, spacing etc?
• Given there's a dependency added on Markdig, I'm assuming you'd prefer a separate package as I've done?
• Public doc comments
• Check that the CustomRenderable added in Rule is fully consistent, add a test for it
• Ensure unit tests use a mocked HttpClient

[patriksvensson]

@mcon Awesome! I know the PR isn't ready yet, but could we rename the module from Spectre.Console.Markdig to Spectre.Console.Markdown?

[khalidabuhakmeh]

Any chance you can include screenshots in this PR.

[patriksvensson]

@mcon Closing this due to inactivity. Feel free to reopen it if you want to continue working on it!

[SuperJMN]

Is this being worked? I'd like to render basic markdown to the console :)

[mcon]

Is this being worked? I'd like to render basic markdown to the console :)

Hi @SuperJMN I'm not working on this one - feel free to continue where I left off!

[enginexon]

@patriksvensson
Is this still interesting topic for community? Was it already implemented?