public NewsRelease Update(string id, NewsRelease updatedRelease)
        {
            var release = NewsReleases.FirstOrDefault(r => r.Key == id);

            release.Keywords = updatedRelease.Keywords;

            NewsReleases.Remove(release);
            NewsReleases.Add(release);

            return(updatedRelease);
        }
 public void Delete(NewsRelease release)
 {
     NewsReleases.Remove(release);
 }