Ship the documentation on the image

[castrojo]

Paired with #1485

I've added a stub for the Bluefin docs: #1509

Then we ship apostrophe and then call it from a .desktop file to render the page:

We could do a PDF instead but the markdown looks so much better when rendered like this imo. But it's also one more app in the default install, but maybe there's a better way to render markdown with the tools we have. CLI will look great with glow so that part is covered.