如何显示分配给外键DJango的内容

from django.db import models

class Author(models.Model):
    name = models.CharField(max_length=100)

class Book(models.Model):
    title = models.CharField(max_length=100)
    author = models.ForeignKey(Author, on_delete=models.CASCADE)

from django.shortcuts import render
from .models import Book

def book_detail(request, book_id):
    book = Book.objects.get(id=book_id)
    author = book.author
    return render(request, 'book_detail.html', {'book': book, 'author': author})

<!-- book_detail.html -->
<h1>{{ book.title }}</h1>
<p>Author: {{ author.name }}</p>