Easy answer: No, Markdown does not support this.
A slightly more complicated answer: if you don't mind to manually concatenate files or write a simple assembly script, you can easily fake it. Consider the following simple example:
parts/ is a directory for storing your partial files.01-introduction.md contains your introduction to the title, title, etc.02-somefile.txt , 01-introduction.md.03-conclusion.md Markdown, outro, , .
Markdown. Unixy, - cat parts/* > final.md. Windows , type parts\* > final.md.
script, build.sh build.bat, , .
, Pandoc, Markdown ( ). , Markdown, HTML, PDF - .