In the get started page (https://dev.twitch.tv/docs/api/get-started) using the code provided in the "Make your first call" paragraph is not working (and also the first request to get the access token), the returned error is:

"URL using bad/illegal format or missing URL"

The error is caused by the use of the single quotation mark (') instead of the double (").

I don't know if this is a Windows limitation or something wrong with my curl version (latest from the curl project https://curl.se/windows/) but I think that this should be corrected or at least mentioned, because I wasted half an hour trying just to getting started.