Feature : Export Markdown and Asciidoc to HTML files

[brianhuster]

Why?

• In order to render Markdown (Md) and Asciidoc (Adoc) in browser, the plugin has to convert those Md and Adoc code to HTML.
• Some people want to convert these kinds of document to HTML, that's why things like Pandoc exist

=> This plugin can support exporting Md and Adoc to HTML files.

Implementation

Difficulty

• Right now, Md and Adoc are parsed in browser
  => Nvim can send a Websocket (WS) request to a browser, and then wait for respond_

Interface

- Possibly creating a new subcommand (export or export2html)
- Question: Should it write to a file directly (specified by users) or just print it in a new buffer and users will save it themselves?

• Provide a button in the preview page to export HTML

Other questions

- Is this feature worth implementing? Browsers already allow users to copy HTML of a web page using the DevTools

• Should it only generate plain HTML or HTML + CSS?