Additional Windows compatibility info

[Swepedia]

I configured this to work with my Windows machine at work so I figured I could share what I had to do to get it working. Maybe this could be added to the README? Let me know if you want a PR for this.

In short:
(setq elfeed-curl-program-name "curl.exe")
(setq elfeed-curl-extra-arguments '("Lk"))

Explanation:
Windows has 2 different "curl" programs; one is just "curl" which does not at all behave like the one I'm familiar with, and the other is "curl.exe" which is the one most people probably expect. You can see these differences if you type gcm curl and gcm curl.exe in Powershell (gcm is short for Get-Command).

The second line are the curl arguments:
L - follow redirects. I don't know why I had to do this, but when I tried curl.exe <url-here> in powershell many of the feeds said they were at a different location
k - makes curl skip the HTTPS secure verification step, which I had to do to get it to work with https URLs

[Swepedia]

Since I'm not at my machine right now, the extra arguments might need a - included, like "-Lk", but I'll have to wait until Monday to confirm