input: Write a python function to crawl a website and count the number of words on the page.
  assert crawl_website("https://example.com") > 0
  assert isinstance(crawl_website("https://example.com"), int)
  assert crawl_website("https://www.wikipedia.org/") > 1000
output: def crawl_website(url):
      import requests
      from bs4 import BeautifulSoup
  
      response = requests.get(url)
      soup = BeautifulSoup(response.content, 'html.parser')
      text = soup.get_text()
      words = text.split()
      return len(words)