after setting up a new ubuntu installation, i was astonished to see, that checker is available as .deb and .rpm now.
since these are installation files and not .zip files, we need other installation hints.
page:
https://wiki.librivox.org/index.php/Checker
menue point:
Instructions for installing Checker on Linux
old:
"To install this useful utility in Linux,the programmer's advice is succinct: Download and unzip the file, then run the checker script to start the application."
suggestion would be something like:
(...but in correct english, pleaseTo install this useful utility in Linux, the programmer's advice is succinct: Download and install the installation file suiting your distro/hardware. You will find checker in your application menue."
)