Update README.md

Author: massoudasadi

README.md

@@ -2,3 +2,15 @@
 
 # LibcSharp
 `libc` Bindings for C#
+
+
+# Examples
+```C#
+using LibcSharp;
+
+int pid = Libc.getpid();
+Console.WriteLine($"Current process ID: {pid}");
+
+int result = Libc.kill(pid, (int)Signal.KILL); // or you can use Constants.SIGKILL
+Console.WriteLine($"Kill result: {result}");
+```