Update src/MAUI/Maui.Samples/Samples/Analysis/ShowLineOfSightAnalysisOnMap/ShowLineOfSightAnalysisOnMap.xaml.cs

Co-authored-by: Ian Malcolm <imalcolm@esri.com>

Author: praveenaak

src/MAUI/Maui.Samples/Samples/Analysis/ShowLineOfSightAnalysisOnMap/ShowLineOfSightAnalysisOnMap.xaml.cs

@@ -52,6 +52,7 @@ private static readonly (Color Color, double X, double Y)[] ObserverSeeds =
             (Color.Blue, -571683.896, 7492017.864),
         };
 
+        // Graphics overlay for the analysis results.
         private GraphicsOverlay _resultsGraphicsOverlay;
 
         // Symbols for visible and not-visible line segments.