/// <summary>
 /// Update the list of DocumentedAssembly files and refreshes the document map.
 /// </summary>
 /// <returns>The updated LiveDocument.</returns>
 internal LiveDocument Update()
 {
     _liveDocument = new LiveDocument(_project.GetAssemblies(), _project.VisibilityFilters);
     _liveDocument.Settings.VisibilityFilters = _project.VisibilityFilters;
     _liveDocument.Update();
     return(_liveDocument);
 }