I need to add text to the beginning of a file

In the process of creating a .md file I need to add text to the beginning of the .md files: http://superuser.com/questions/246837/how-do-i-add-text-to-the-beginning-of-a-file-in-bash

http://stackoverflow.com/questions/2099471/add-a-prefix-string-to-beginning-of-each-line
http://stackoverflow.com/questions/208181/how-to-rename-with-prefix-suffix
