Update README.md

Added chaining example.

README.md

@@ -1,6 +1,16 @@
 # ObjectivePaths
 ObjectivePaths is a wrapper for .NET filesystem operations. View Demo project to see an example.
 
+## Examples:
+    // Chaining:
+    // Create FileSystemService
+    var fileSystemService = new LocalFileSystemService(new FileSystem());
+
+    // Get a file called "C.txt" in sub directory "A\B" of someAbsolutePath:
+    var directory = fileSystemService.GetDirectory(someAbsolutePath);
+    var fileTwoLevelsDown = directory.GetDirectory("A").GetDirectry("B").GetFile("C.txt");
+
+
 Contributors: please review LICENSE.txt before using the library or submitting a contribution. All Subissions must be released under the MIT License (https://opensource.org/license/mit/) in order to be compatible with the project's dual-license model.
 
 Copyright (c) 2023 Michael D. Corbett (Github: @vector-man) .