Update or obsolete https://iperf.fr/iperf-download.php

[maettu-this]

NOTE: The iperf3 issue tracker is for registering bugs, enhancement
requests, or submissions of code. It is not a means for asking
questions about building or using iperf3. Those are best directed
towards the Discussions section for this project at
https://github.com/esnet/iperf/discussions
or to the iperf3 mailing list at iperf-dev@googlegroups.com.
A list of frequently-asked questions
regarding iperf3 can be found at http://software.es.net/iperf/faq.html.

Context

• Version of iperf3: 3.13

• Hardware: https://iperf.fr/iperf-download.php

• Operating system (and distribution, if any): n/a

Please note: iperf3 is supported on Linux, FreeBSD, and macOS.
Support may be provided on a best-effort basis to other UNIX-like
platforms. We cannot provide support for building and/or running
iperf3 on Windows, iOS, or Android.

• Other relevant information (for example, non-default compilers,
  libraries, cross-compiling, etc.): n/a

Please fill out one of the "Bug Report" or "Enhancement Request"
sections, as appropriate. Note that submissions of bug fixes, new
features, etc. should be done as a pull request at
https://github.com/esnet/iperf/pulls

Bug Report

• Expected Behavior
  Web page reflects latest state of iperf3. Or clearly gives a note that web page is outdated/obsolete.

• Actual Behavior
  Most packages not updated since 2016.

• Steps to Reproduce
  Go to https://iperf.fr/iperf-download.php.

• Possible Solution
  Update web page.

[bmah888]

Unfortunately the iperf3 developers have no control over iperf.fr, which was started by someone completely unrelated to the project as kind of a fan site. Attempts to contact the site's maintainer over the past several years have not been successful.

[cschar]

Can you please add a note on the main README of this repo to specify the confusion about iperf.fr