Add some API help

README.md

@@ -1 +1,29 @@
-# fire_plus
+# fire_plus
+
+## API
+
+* `fire_plus.burnplayer(player)`
+	Sets `player` on fire
+	* player - player object
+
+* `fire_plus.get_burn_dmg(player)`
+	Returns how much damage `player` should take from fire
+	default is 1
+	* `player` - player object
+
+* `fire_plus.tnt_explode_radius`
+	How close to a TNT node a player has to be to detonate it
+
+* `fire_plus.ignition_nodes`
+	Nodes that set player on fire. Example:
+	* `table.insert(fire_plus.ignition_nodes, "fire")`
+		All nodes with `fire` in their itemstring will set a player on fire
+
+* `fire_plus.put_outs`
+	Nodes that put out burning players. Example:
+	* `table.insert(fire_plus.ignition_nodes, "water")`
+		All nodes with `water` in their itemstring will put out a burning player
+
+* `Fire tools`
+	Allows modders to make tools set any players they hit on fire.
+	Just set `tool_capabilities.damage_groups.burn = 1`