Looks like an attempt to make the main GitHub page (the part above the README) display something interesting. It is messed up now because of further commits, but you can see what it looked like at the time here:
See the spread-the-word script in https://github.com/attogram/bash-screensavers/tree/main/spot...
This script generates a series of shell commands to create a "spotlight" message on the main GitHub repository page. It does this by generating commands that make trivial changes to the top 12 files and directories and then commit those changes with custom messages.