Consider adding "documentation" tab for snippet

[VaclovasV]

When we are coding with angular, react or other framework, which are based on components or their alternatives, rendered view is not an actual thing, what you have to write in code.
Maybe it is possible, to add additional section, for REAL usage and name it, like documentation?
Now, on projects like react, style guide is more confusing, than helping.

[dasmurphy]

And please include markdown editing. This would be awesome.