Documentation updates

client-mu-plugins/goodbids/README.md

@@ -70,6 +70,11 @@ Returns the Auction's Goal value. If `$auction_id` is not provided, the current
 `goodbids()->auctions->get_expected_high_bid( int $auction_id )`  
 Returns the Auction's Expected High Bid value. If `$auction_id` is not provided, the current post ID will be used.
 
+### Bids Functions
+
+`goodbids()->auctions->bids->get_auction_id( int $bid_product_id )`  
+Returns the Auction ID for the given Bid Product ID.
+
 ### ACF Block Functions
 
 `goodbids()->acf->blocks()->get_all_blocks()`  

client-mu-plugins/goodbids/src/classes/Auctions/Bids.php

@@ -149,6 +149,13 @@ public function get_auction_id( int $bid_product_id ): ?int {
 		return intval( $auction_id ) ?: null;
 	}
 
+	/**
+	 * Update the Bid product price when an order is completed.
+	 *
+	 * @since 1.0.0
+	 *
+	 * @return void
+	 */
 	private function update_bid_product_on_order_complete(): void {
 		add_action(
 			'goodbids_order_payment_complete',