Fixed an error.

When successfully fleeing, you can pay attrition from swag in your discard.

Thanks Yokiboy!

This is a revised version with a fix for an omission (attrition of failed flee action can be payed from discard too).

Thanks for historicengraver for noticing.

Also added a clarification about returned zombies and a few small rearrangements.

This is a small update for my rules summary; it includes some typo fixes and a small rearrangement