The correct link to sample scripts should be https://pnp.github.io/cli-microsoft365/sample-scripts/introduction.

Now, the README.md contains https://pnp.github.io/cli-microsoft365/sample-scripts which returns 404

https://github.com/pnp/cli-microsoft365/blob/main/README.md?plain=1#L195