Markdown Editor

[lucasstarsz]

Is your feature request related to a problem? Please describe.

Compose's development has been going fairly well so far -- I'm quite proud of it, actually. However, we need to take the next step: adding Markdown support.

What should the solution be like?

The following features should be present in the editor:

• Display Markdown version of code on the right side of the tab
• Real-time rendering of markdown solution
• Support multiple styles of Markdown, especially Github Markdown
• Add option to create markdown files by default to Settings

Additional Context

This feature should be ready for Compose 0.3.0.

[Yeffian]

Request to add file icons

A simple icon that shows up beside the file, symbolizing what kind of a file it is. For example, a markdown file could have the markdown logo beside it.