allow to compile standalone html document for local usage without webserver

Hi there,

great project!

I think it would be a nice addition to have a shell/python/whatever script that takes the `index.html` and `life.md` files and combines them into a single `index-standalone.html` (name subject to change).
`index-standalone.htm` would contain everything (html, javascript, css **and the actual data**) needed so you can just double click it, firefox/chrome/... opens up and "everything works". No webserver needed for testing/debugging and you could share it via mail/usb-stick, ...

Best Regards
Michael

Start by reading index.html and life.md to see how the page currently obtains its HTML, JavaScript, CSS, and data. Trace the existing local startup path, then define the standalone output around those inputs. Done means a generated index-standalone.html opens directly in Firefox or Chrome without a webserver and still works with the data included.

Written by the indexing model from the issue text.