Input format in revsort example is a broken link

[simleo]

In the revsort example, the input file format is https://www.iana.org/assignments/media-types/text/plain, but that page does not exist. I'm not even sure this is a problem: is that supposed to lead to an actual web page? Or is there a reference doc stating that's the correct URI? Would https://www.rfc-editor.org/rfc/rfc2046.html#section-4.1.3 be a viable URL alternative?

[mr-c]

Hello @simleo ; almost all IANA media types do have a URL in the format https://www.iana.org/assignments/ + the media type except text/plain !

For example: https://www.iana.org/assignments/media-types/application/cwl

We can switch the example to something else like https://www.iana.org/assignments/media-types/text/csv