code: def __datasets_desc():
      
      datasets = __get_data_folder_path() + 'datasets.csv'
      df = pd.read_csv(datasets)
      df = df[['Item', 'Title']]
      df.columns = ['dataset_id', 'title']
      # print('a list of the available datasets:')
      return df
docs: return a df of the available datasets with description