f describe variables better

Author: TheBlueMatt

lightning/src/routing/scoring.rs

@@ -1795,8 +1795,8 @@ mod bucketed_history {
 			// values, which will result in us thinking we have some nontrivial probability of
 			// routing up to that amount.
 			if self.min_liquidity_offset_history.buckets[0] != 0 {
-				let mut highest_max_bucket_with_points = 0;
-				let mut total_max_points = 0;
+				let mut highest_max_bucket_with_points = 0; // The highest max-bucket with any data
+				let mut total_max_points = 0; // Total points in max-buckets to consider
 				for (max_idx, max_bucket) in self.max_liquidity_offset_history.buckets.iter().enumerate() {
 					if *max_bucket >= 32 {
 						highest_max_bucket_with_points = cmp::max(highest_max_bucket_with_points, max_idx);