[Feature] Add Basic DocC Documentation Support

[Kyle-Ye]

Summary

After upgrading the Swift version, we can use DocC to document the Markdown module.

So this PR add a .docc file in Markdown module, add basic DocC support and move the original ./Documentation/BlockDirectives.md to the DocC Hierarchy

Checklist

Make sure you check off the following items. If they cannot be completed, provide a reason.

• Ran the ./bin/test script and it succeeded
• Updated documentation if necessary

[QuietMisdreavus]

Thanks so much for posting this! This is a great start to having docs for swift-markdown. I just want to make some small edits, and then this can be ready to go, even though this is a "WIP". I think it's useful to merge so we can use it as a baseline to build up documentation for Swift-Markdown over time. I also want to wait until #4 is landed, so we can use that work to enable the doc catalog.

[Kyle-Ye]

Thanks so much for posting this! This is a great start to having docs for swift-markdown. I just want to make some small edits, and then this can be ready to go, even though this is a "WIP". I think it's useful to merge so we can use it as a baseline to build up documentation for Swift-Markdown over time. I also want to wait until #4 is landed, so we can use that work to enable the doc catalog.

Update with your suggestion.

[Kyle-Ye]

Thanks so much for posting this! This is a great start to having docs for swift-markdown. I just want to make some small edits, and then this can be ready to go, even though this is a "WIP". I think it's useful to merge so we can use it as a baseline to build up documentation for Swift-Markdown over time. I also want to wait until #4 is landed, so we can use that work to enable the doc catalog.

The swift bump version PR #4 is merged into main. And I rebased the branch. It should pass the Linux Test now. Could we run test again on this and merge it if passing the tests? @QuietMisdreavus

[QuietMisdreavus]

@swift-ci Please test

[Kyle-Ye]

I think we need to pending this PR until #13 is merged.

[ethan-kusters]

This looks amazing! Thanks for getting things started here.

[ethan-kusters]

@swift-ci please test

[ethan-kusters]

Looks great. Thank you @Kyle-Ye!

[QuietMisdreavus]

Looks great, thanks so much!