input: Write a python function to add a new book to the books list.
  assert add_book('Learning Python', 'Mark Lutz') == [{'name': 'Python Crash Course', 'author': 'Eric Matthes', 'read': False}, {'name': 'Fluent Python', 'author': 'Luciano Ramalho', 'read': False}, {'name': 'Learning Python', 'author': 'Mark Lutz', 'read': False}]
  assert add_book('Effective Python', 'Brett Slatkin') == [{'name': 'Python Crash Course', 'author': 'Eric Matthes', 'read': False}, {'name': 'Fluent Python', 'author': 'Luciano Ramalho', 'read': False}, {'name': 'Learning Python', 'author': 'Mark Lutz', 'read': False}, {'name': 'Effective Python', 'author': 'Brett Slatkin', 'read': False}]
output: books = [
      {'name': 'Python Crash Course', 'author': 'Eric Matthes', 'read': False},
      {'name': 'Fluent Python', 'author': 'Luciano Ramalho', 'read': False}
  ]
  
  def add_book(name, author):
      new_book = {'name': name, 'author': author, 'read': False}
      books.append(new_book)
      return books