message: Changing example
diff: @@ -156,12 +156,12 @@ print(rel.create("test_table2"))
  # insert the relation's data into an existing table
  conn.execute("CREATE TABLE test_table3 (i INTEGER, j STRING)")
  -print(rel.copy_to("test_table3"))
  +print(rel.insert_into("test_table3"))
  # Inserting elements into table_3
  -print(conn.values([5, 'five']).copy_to("test_table3"))
  +print(conn.values([5, 'five']).insert_into("test_table3"))
  rel_3 = conn.table("test_table3")
  -rel_3.insert([5,'five'])
  +rel_3.insert([6,'six'])
  # create a SQL-accessible view of the relation
  print(rel.create_view('test_view'))
  