A link to the rules is here: https://goo.gl/qXpJWg
(This is a short Google URL to a world-readable Google Drive Document. The rules are also available below as a Page on this blog.)
Here is the first page of the ruleset:
A Damned Serious Business
Quick Play Napoleonics
It has been a damned serious business... Blücher and I have lost 30,000 men. It has been a damned nice thing — the nearest run thing you ever saw in your life. … By God! I don't think it would have been done if I had not been there.