Write meeting a deadline page

@rogerhutchings So we both did the same thing. I haven't done screenshots but I've written a bit more text. Might be worth committing them both together?
[This Markdown cheat sheet](https://github.com/adam-p/markdown-here/wiki/Markdown-Cheatsheet) suggests that we can't really put borders around images, but how about wrapping them in tables?

On that note, what about having multiple images breaking up one of these lists show up side-by-side underneath the list instead of 'inline'?