Re: update section about who uses autotest

Thanks, I installed that.

update section about who uses autotest

Hi, The doc says that "Bison, Free Recode, Free Wdiff, GNU Tar" uses autotest. This needs an update: * Free Recode no longer uses autotest, see https://github.com/pinard/Recode/tree/master/tests (note the change entry "Use pytest instead of Autotest"). * Free Wdiff is now GNU wdiff aga