命令中的网址不需要加单引号(Win11，release v1.1.0)

[choglost]

我实际使用结果如下。
作者大大可以考虑更改一下readme，我看到之前也有issue反应这个问题。

E:\tools>docdown 'https://max.book118.com/html/2017/1221/145235973.shtm'
Traceback (most recent call last):
  File "run.py", line 6, in <module>
  File "tool.py", line 121, in download_from_url
  File "playwright\sync_api\_generated.py", line 7413, in goto
  File "playwright\_impl\_sync_base.py", line 88, in _sync
  File "playwright\_impl\_page.py", line 493, in goto
  File "playwright\_impl\_frame.py", line 122, in goto
  File "playwright\_impl\_connection.py", line 39, in send
  File "playwright\_impl\_connection.py", line 63, in inner_send
playwright._impl._api_types.Error: Protocol error (Playwright.navigate): Cannot navigate to invalid URL [{"code":-32000,"message":"Cannot navigate to invalid URL"}]
=========================== logs ===========================
navigating to "'https://max.book118.com/html/2017/1221/145235973.shtm'", waiting until "load"
============================================================
[12224] Failed to execute script 'run' due to unhandled exception!

E:\tools>docdown https://max.book118.com/html/2017/1221/145235973.shtm
Image contains an alpha channel. Computing a separate soft mask (/SMask) image to store transparency in PDF.
Image contains an alpha channel. Computing a separate soft mask (/SMask) image to store transparency in PDF.
Image contains an alpha channel. Computing a separate soft mask (/SMask) image to store transparency in PDF.
Image contains an alpha channel. Computing a separate soft mask (/SMask) image to store transparency in PDF.
Image contains an alpha channel. Computing a separate soft mask (/SMask) image to store transparency in PDF.
Image contains an alpha channel. Computing a separate soft mask (/SMask) image to store transparency in PDF.
Image contains an alpha channel. Computing a separate soft mask (/SMask) image to store transparency in PDF.
Image contains an alpha channel. Computing a separate soft mask (/SMask) image to store transparency in PDF.
Image contains an alpha channel. Computing a separate soft mask (/SMask) image to store transparency in PDF.
Image contains an alpha channel. Computing a separate soft mask (/SMask) image to store transparency in PDF.
Image contains an alpha channel. Computing a separate soft mask (/SMask) image to store transparency in PDF.
Image contains an alpha channel. Computing a separate soft mask (/SMask) image to store transparency in PDF.