/// <summary>
 /// Method to remove a expertise from the expertise collection
 /// </summary>
 /// <param name="expertise">Expertise object to be removed</param>
 public void Remove(Expertise expertise)
 {
     List.Remove(expertise);
 }
 /// <summary>
 /// Method to add expertise to the expertise collection
 /// </summary>
 /// <param name="expertise">Expertise object to be added</param>
 public void Add(Expertise expertise)
 {
     List.Add(expertise);
 }