Added new NodeBuilder + operator

Author: Sergio0694

NeuralNetwork.NET/Networks/Graph/NodeBuilder.cs

@@ -84,6 +84,15 @@ internal T GetParameter<T>() => Parameter != null && Parameter.GetType() == type
 
         #region APIs
 
+        /// <summary>
+        /// Creates a new linear sum node that merges two input nodes
+        /// </summary>
+        /// <param name="first">The first node to sum</param>
+        /// <param name="second">The second node to sum</param>
+        [PublicAPI]
+        [MustUseReturnValue, NotNull]
+        public static NodeBuilder operator +([NotNull] NodeBuilder first, [NotNull] NodeBuilder second) => first.Sum(second);
+
         /// <summary>
         /// Creates a new linear sum node that merges multiple input nodes
         /// </summary>

README.md

@@ -122,7 +122,7 @@ INeuralNetwork network = NetworkManager.NewGraph(TensorInfo.Image<Rgb24>(32,32),
         CuDnnNetworkLayers.Convolutional((1, 1), 20, ActivationType.ReLU),
         CuDnnNetworkLayers.Convolutional(ConvolutionInfo.Same(), (5, 5), 40, ActivationType.ReLU),
         CuDnnNetworkLayers.Convolutional((1, 1), 20, ActivationType.ReLU));
-    var sum = conv2.Sum(pool1);
+    var sum = conv2 + pool1;
 
     var fc1 = sum.Layer(CuDnnNetworkLayers.FullyConnected(250, ActivationType.LeCunTanh));
     var fc2 = fc1.Layer(CuDnnNetworkLayers.FullyConnected(125, ActivationType.LeCunTanh));