refactor: change folder structure

01-Introductory-Sessions/Session05/Projects/Library/Librarian.cs

@@ -0,0 +1,23 @@
+using System;
+using System.Collections.Generic;
+using System.Diagnostics.Metrics;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MyLibrary
+{
+    public class Librarian : Person
+    {
+        public void IssueBook(Member member, Book book)
+        {
+            Console.WriteLine($"{Name} (Librarian) issued '{book.Title}' to {member.Name}.");
+        }
+    
+        public override string Introduce()
+        {
+            return "Hi, I am " + Name + ", a librarian";
+        }
+
+    }
+}