fixed typo

Author: petesramek

tests/PolylineAlgorithm.Abstraction.Tests/Internal/CoordinateVarianceTest.cs

@@ -75,7 +75,7 @@ public void Next_Calculates_Correct_Variance_From_Previous_Variance((int Latitud
 
     [TestMethod]
     [DynamicData(nameof(Coordinates), DynamicDataSourceType.Property)]
-    public void ToString_Retruns_Value_Containing_Variance(int latitude, int longitude) {
+    public void ToString_Returns_Value_Containing_Variance(int latitude, int longitude) {
         // Arrange
         CoordinateVariance variance = new();
         variance.Next(latitude, longitude);