updated documentation

src/playermat/PlaymatApi.ttslua

@@ -97,8 +97,9 @@ do
     end
   end
 
-  -- Triggers the Upkeep for the requested playmat
+  -- Triggers the discard function of the requested playmat at the position
   ---@param matColor String Color of the playmat - White, Orange, Green, Red or All
+  ---@param searchPosition Table Global position for the discard
   PlaymatApi.discardObjectsAtPosition = function(matColor, searchPosition)
     for _, mat in pairs(getMatForColor(matColor)) do
       mat.call("discardObjectsAtPosition", searchPosition)