Add support for socks proxies (also fix broken "More information on adding proxies" link)

[mstyp]

Is your feature request related to a problem? Please describe.

I cant use tor with this tool, so I cant use this tool.

Describe the solution you'd like

add Socks 5 proxy support. EG, in config file,

proxies = {'http': 'socks5h://localhost:9150', 'https': 'socks5h://localhost:9150'}

or something.

Additional context

Also, in the config file, it says "# More information on adding proxies: http://docs.python-requests.org/en/master/user/advanced/#proxies", but this link is broken.