code comment

Author: petesramek

src/PolylineAlgorithm/CoordinateDecoder.cs

@@ -13,12 +13,16 @@ namespace PolylineAlgorithm;
 /// Performs decoding of encoded polyline strings into a sequence of geographic coordinates.
 /// </summary>
 public sealed class CoordinateDecoder : PolylineDecoder<Polyline, Coordinate> {
-
     [MethodImpl(MethodImplOptions.AggressiveInlining)]
     protected override Coordinate CreateCoordinate(double latitude, double longitude) {
         return new(latitude, longitude);
     }
 
+    /// <summary>
+    /// Converts the provided polyline instance into a <see cref="ReadOnlyMemory{Char}"/> for decoding.
+    /// </summary>
+    /// <param name="polyline"></param>
+    /// <returns></returns>
     protected override ReadOnlyMemory<char> GetReadOnlyMemory(Polyline polyline) {
         return polyline.Value;
     }