Markdown syntax references

Markdown Cheatsheet

• A blog from Gist:
  http://assemble.io/docs/Cheatsheet-Markdown.html

Markdown wiki

• A wiki made by Adam Pritchard: https://github.com/adam-p/markdown-here/wiki/Markdown-Cheatsheet

  This is intended as a quick reference and showcase. For more complete info, see John Gruber’s original spec and the Github-flavored Markdown info page.
  Note that there is also a Cheatsheet specific to Markdown Here if that’s what you’re looking for. You can also check out more Markdown tools.

R Markdown

When you know the markdown syntax, as an R user, you have to know R Markdown: A wonderful tool for writer who wants to combine the research results with the article/words.

R Markdown is an authoring format that enables easy creation of dynamic documents, presentations, and reports from R. It combines the core syntax of markdown (an easy to write plain text format) with embedded R code chunks that are run so their output can be included in the final document. R Markdown documents are fully reproducible (they can be automatically regenerated whenever underlying R code or data changes).
R Markdown has many available output formats including HTML, PDF, MS Word, Beamer, HTML5 presentations, Tufte handouts, R package vignettes, and even entire websites.