add Programmyday form github

ExtensionMehtod2/Program.cs

@@ -0,0 +1,24 @@
+namespace SplitWordIntoCountExtensionMethod
+{
+    internal class Program
+    {
+        static void Main(string[] args)
+        {
+            string input = "Das ist der Versuch nummer 1";
+            Console.WriteLine($"Word count: {input.SplitIntoWords()}");
+        }
+    }
+    static class WordCountExtension
+    {
+        public static int SplitIntoWords(this string input)
+        {
+            int freq = 0;
+            string[] index = input.Split(" ");
+            for (int i = 0; i < index.Length; i++)
+            {
+                freq++;
+            }
+            return freq;
+        }
+    }
+}