I added --shout, --version and --times N to the Usage table in README.md, each with a short example. The --times row notes the default of 1. I left the other sections unchanged.
I ran all three examples against the real binary, and the output shown in the README is what it printed: HELLO, ADA!, two Hello, Ada! lines, and 0.1.0.
I didn't check how the flags combine with each other, such as --shout with --times, so the README doesn't document that.