[Freelance Traveller] New Submission Format

[FreeTrav]

Effective immediately, Freelance Traveller can accept submissions in Markdown format, both original (as described at http://daringfireball.net/projects/markdown/syntax) and Github-flavored (as described at http://guides.github.com/features/mastering-markdown). This provides a convenient and consistent way for authors to submit in 'plain text' if for some reason a word processor is unavailable or undesired.