Fix conflicting information about sorting order

Sorting order was specified as descending in README.md but
in the tests it was ascending. Tests are now expecting the same order.

Author: kappsegla

README.md

@@ -44,7 +44,7 @@ Expected Command-Line Arguments:
 
 * --zone SE1|SE2|SE3|SE4 (required)
 * --date YYYY-MM-DD (optional, defaults to current date)
-* --sorted (optional, to display prices in ascending order)
+* --sorted (optional, to display prices in descending order)
 * --charging 2h|4h|8h (optional, to find optimal charging windows)
 * --help (optional, to display usage information)
 

src/test/java/com/example/MainTest.java

@@ -170,13 +170,13 @@ void displaySortedPrices_whenRequested() {
 
         // Expected sorted output (ascending by price)
         List<String> expectedOrder = List.of(
-                "21-22 10,00 öre",
-                "23-00 10,00 öre",
-                "00-01 10,00 öre",
+                "20-21 30,00 öre",
+                "22-23 20,00 öre",
                 "01-02 15,00 öre",
                 "02-03 15,00 öre",
-                "22-23 20,00 öre",
-                "20-21 30,00 öre"
+                "21-22 10,00 öre",
+                "23-00 10,00 öre",
+                "00-01 10,00 öre"
         );
 
         // Extract actual lines that match the pattern