Update documentation links

Math/Derivatives
Math/Interpolation
Math/Range

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Data/Nodes/Math/Derivative/DDXNode.cs

             name = "DDX";
         }
 
+        public override string documentationURL
+        {
+            get { return "https://github.com/Unity-Technologies/ShaderGraph/wiki/DDX-Node"; }
+        }
+
         protected override MethodInfo GetFunctionToConvert()
         {
             return GetType().GetMethod("Unity_DDX", BindingFlags.Static | BindingFlags.NonPublic);

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Data/Nodes/Math/Derivative/DDXYNode.cs

             name = "DDXY";
         }
 
+        public override string documentationURL
+        {
+            get { return "https://github.com/Unity-Technologies/ShaderGraph/wiki/DDXY-Node"; }
+        }
+
         protected override MethodInfo GetFunctionToConvert()
         {
             return GetType().GetMethod("Unity_DDXY", BindingFlags.Static | BindingFlags.NonPublic);

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Data/Nodes/Math/Derivative/DDYNode.cs

             name = "DDY";
         }
 
+        public override string documentationURL
+        {
+            get { return "https://github.com/Unity-Technologies/ShaderGraph/wiki/DDY-Node"; }
+        }
+
         protected override MethodInfo GetFunctionToConvert()
         {
             return GetType().GetMethod("Unity_DDY", BindingFlags.Static | BindingFlags.NonPublic);

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Data/Nodes/Math/Interpolation/InverseLerpNode.cs

             name = "Inverse Lerp";
         }
 
+        public override string documentationURL
+        {
+            get { return "https://github.com/Unity-Technologies/ShaderGraph/wiki/Inverse-Lerp-Node"; }
+        }
+
         protected override MethodInfo GetFunctionToConvert()
         {
             return GetType().GetMethod("Unity_InverseLerp", BindingFlags.Static | BindingFlags.NonPublic);

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Data/Nodes/Math/Interpolation/LerpNode.cs

             name = "Lerp";
         }
 
+        public override string documentationURL
+        {
+            get { return "https://github.com/Unity-Technologies/ShaderGraph/wiki/Lerp-Node"; }
+        }
+
         protected override MethodInfo GetFunctionToConvert()
         {
             return GetType().GetMethod("Unity_Lerp", BindingFlags.Static | BindingFlags.NonPublic);

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Data/Nodes/Math/Interpolation/SmoothstepNode.cs

             name = "Smoothstep";
         }
 
+        public override string documentationURL
+        {
+            get { return "https://github.com/Unity-Technologies/ShaderGraph/wiki/Smoothstep-Node"; }
+        }
+
         protected override MethodInfo GetFunctionToConvert()
         {
             return GetType().GetMethod("Unity_Smoothstep", BindingFlags.Static | BindingFlags.NonPublic);

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Data/Nodes/Math/Range/ClampNode.cs

             name = "Clamp";
         }
 
+        public override string documentationURL
+        {
+            get { return "https://github.com/Unity-Technologies/ShaderGraph/wiki/Clamp-Node"; }
+        }
+
         protected override MethodInfo GetFunctionToConvert()
         {
             return GetType().GetMethod("Unity_Clamp", BindingFlags.Static | BindingFlags.NonPublic);

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Data/Nodes/Math/Range/FractionNode.cs

             name = "Fraction";
         }
 
+        public override string documentationURL
+        {
+            get { return "https://github.com/Unity-Technologies/ShaderGraph/wiki/Fraction-Node"; }
+        }
+
         protected override MethodInfo GetFunctionToConvert()
         {
             return GetType().GetMethod("Unity_Fraction", BindingFlags.Static | BindingFlags.NonPublic);

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Data/Nodes/Math/Range/MaximumNode.cs

             name = "Maximum";
         }
 
+        public override string documentationURL
+        {
+            get { return "https://github.com/Unity-Technologies/ShaderGraph/wiki/Maximum-Node"; }
+        }
+
         protected override MethodInfo GetFunctionToConvert()
         {
             return GetType().GetMethod("Unity_Maximum", BindingFlags.Static | BindingFlags.NonPublic);

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Data/Nodes/Math/Range/MinimumNode.cs

             name = "Minimum";
         }
 
+        public override string documentationURL
+        {
+            get { return "https://github.com/Unity-Technologies/ShaderGraph/wiki/Minimum-Node"; }
+        }
+
         protected override MethodInfo GetFunctionToConvert()
         {
             return GetType().GetMethod("Unity_Minimum", BindingFlags.Static | BindingFlags.NonPublic);

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Data/Nodes/Math/Range/OneMinusNode.cs

             name = "One Minus";
         }
 
+        public override string documentationURL
+        {
+            get { return "https://github.com/Unity-Technologies/ShaderGraph/wiki/One-Minus-Node"; }
+        }
+
         protected override MethodInfo GetFunctionToConvert()
         {
             return GetType().GetMethod("Unity_OneMinus", BindingFlags.Static | BindingFlags.NonPublic);

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Data/Nodes/Math/Range/RandomRangeNode.cs

             name = "Random Range";
         }
 
+        public override string documentationURL
+        {
+            get { return "https://github.com/Unity-Technologies/ShaderGraph/wiki/Random-Range-Node"; }
+        }
+
         protected override MethodInfo GetFunctionToConvert()
         {
             return GetType().GetMethod("Unity_RandomRange", BindingFlags.Static | BindingFlags.NonPublic);

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Data/Nodes/Math/Range/RemapNode.cs

             name = "Remap";
         }
 
+        public override string documentationURL
+        {
+            get { return "https://github.com/Unity-Technologies/ShaderGraph/wiki/Remap-Node"; }
+        }
+
         protected override MethodInfo GetFunctionToConvert()
         {
             return GetType().GetMethod("Unity_Remap", BindingFlags.Static | BindingFlags.NonPublic);

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Data/Nodes/Math/Range/SaturateNode.cs

             name = "Saturate";
         }
 
+        public override string documentationURL
+        {
+            get { return "https://github.com/Unity-Technologies/ShaderGraph/wiki/Saturate-Node"; }
+        }
+
         protected override MethodInfo GetFunctionToConvert()
         {
             return GetType().GetMethod("Unity_Saturate", BindingFlags.Static | BindingFlags.NonPublic);