Compare: Output: https://github.com/vibe-d/vibe.d/blob/master/README.md
Input: https://raw.githubusercontent.com/vibe-d/vibe.d/master/README.mdMost programmers who use GitHub will be familiar with this and can write docs, tutorials etc. with very little effort. The set of Markdown used for the D documentation shouldn't be needlessly limited (i.e. it shouldn't offer less than CommonMark - GitHub's core markup langauge).
