Add example for readable conditions

Author: Ruben Schmidmeister

Sandbox/ReadableConditions.cs

@@ -0,0 +1,18 @@
+using System;
+
+namespace Sandbox
+{
+    public static class ReadableConditions
+    {
+        public static void Conditions()
+        {
+            if (10 == Environment.ExitCode)
+            {
+            }
+
+            if (10 <= Environment.ExitCode && Environment.ExitCode > 20)
+            {
+            }
+        }
+    }
+}