Import from doc, markdown support, and tables

First of all, I want to say that overall, writing my Instructable was a pleasant experience. While I do have some suggestions, I enjoyed the process and felt that the site worked pretty well to allow me to build a good set of instructions. Kudos!

I'm sure it's probably been suggested before or I could be missing something with the editor, but I would like to see a way to import from a word doc. I wrote up a lot of the details in a word document before writing my Instructable, and if I were able to import that directly it would have saved a lot of time. I was able to copy and paste, but it removed much of the formatting and I had to reformat sections.

It would also be really awesome to be able to copy and paste markdown formatted text into the step instructions. Markdown is used by a lot of sites / software including github, thingiverse, confluence, and jira to name a few I know of off the top of my head.

Finally, I really wanted tables in some of the steps to make lists of tools and parts cleaner / easier to read. If tables are supported, I wasn't sure how to create them.