urllib fails without headers

[Olamyy]

Hi,
Thanks for this great tool.

I noticed urllib fails with a Forbidden Request error when I call download_page on some links. You can reproduce the error by trying the code below:

import lazynlp
link = "https://punchng.com/"
page = lazynlp.download_page(link, context=None, timeout=None)

This raises a 403 as shown below.

I've attempted to create a PR that adds headers to the request by default.