Fixed the single file upload bug (https://mrhenry.basecamphq.com/projects/10235776-hetpaleis/todo_items/164574450/comments#235152951)
Fixed the autolinking in the Markdown formatter.

See #17
https://mrhenry.basecamphq.com/projects/10235776-hetpaleis/todo_items/164494119/comments#234974672