The Markdown export backend, “md”, converts an Org file to Markdown format, as defined at https://daringfireball.net/projects/markdown/. This is the original Markdown specification, developed by John Gruber and Aaron Swartz.
Since “md” backend is built on top of the HTML backend (see HTML Export), it converts every Org construct not defined in Markdown syntax, such as tables, to HTML.
Do note that the original markdown syntax has differences with other commonly used Markdown flavors. See https://en.wikipedia.org/wiki/Markdown for more details.
org-md-export-to-markdown) ¶Export to a text file with Markdown syntax. For ‘myfile.org’, Org exports to ‘myfile.md’, overwritten without warning.
org-md-export-as-markdown) ¶Export to a temporary buffer. Does not create a file.
Export as a text file with Markdown syntax, then open it.
Based on org-md-headline-style, Markdown export can generate
headlines of both atx and setext types. setext limits headline
levels to two whereas atx limits headline levels to six. mixed
exports headline levels one and two in setext-style, and headline
levels three through six as atx-style headlines. Beyond these
limits, the export backend converts headlines to lists. To set a
limit to a level before the absolute limit (see Export Settings).