Prayer: bones, prayer points, combat prayers, temple offerings

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

README.md

@@ -32,6 +32,11 @@ Alpha. One season, bandit raids plus two friendly events, six buildings.
   pays taxes, and grows up to the housing cap; it promotes the settlement
   (hamlet, village at 40, town at 90, city at 150), which raises building
   level caps and gives everyone bank slots.
+- **Prayer:** enemies drop bones; burying them gives prayer points and
+  Prayer XP. Up to two prayers (eight unlock from level 1 to 60) boost each
+  fight while their points last, and praying trains Prayer too. A Temple adds
+  points per bone and lets players offer bones as devotion, which wards the
+  city in the next raid.
 - **Events:** raids are announced a day or two ahead. Intel (spymaster's
   guild + scout reconnaissance) narrows down when, how strong, and finally
   where their camp is, so fighters can sabotage it. Defeat kills or drives