Small copilot suggestions

Author: tsmbland

src/simulation/prices.rs

@@ -379,11 +379,10 @@ where
 ///   existing assets
 /// * `activity_keys_for_candidates` - Iterator over activity keys from optimisation solution for
 ///   candidate assets
-/// * `annual_activities` - Map of annual activities for each asset computed by
 ///   `calculate_annual_activities`. This only needs to include existing assets.
 /// * `upstream_prices` - Prices for commodities upstream of the ones we are calculating prices for
 /// * `year` - The year for which prices are being calculated
-/// * `markets_to_price` - Set of markets to calculate full cost prices for
+/// * `markets_to_price` - Set of markets to calculate marginal prices for
 ///
 /// # Returns
 ///
@@ -462,7 +461,7 @@ where
     prices
 }
 
-/// Calculated annual activities for each asset by summing across all time slices
+/// Calculate annual activities for each asset by summing across all time slices
 fn calculate_annual_activities<'a, I>(activities: I) -> HashMap<AssetRef, Activity>
 where
     I: IntoIterator<Item = (&'a AssetRef, &'a TimeSliceID, Activity)>,