correction de deux tests de bestscore

source/Trek-12/Tests/BestScoreTests.cs

@@ -55,7 +55,7 @@ namespace Tests
             var bestScore = new BestScore(myMap.Name, myPlayer, 0, 10);
             bestScore.UpdateScore(5);
             
-            Assert.Equal(5, bestScore.Score);
+            Assert.Equal(15, bestScore.Score);
         }
 
         [Fact]
@@ -67,7 +67,7 @@ namespace Tests
             var bestScore = new BestScore(myMap.Name, myPlayer, 0, 5);
             bestScore.UpdateScore(10);
             
-            Assert.Equal(10, bestScore.Score);
+            Assert.Equal(15, bestScore.Score);
         }
     }
 }