minor addition: please add an inline comment here "Replace youruser with a user that exists in your system" something like this, and add it in the installation instructions as well. How about changing youruser to $USER so that it will be even more obvious that it needs change?
Another idea: how about putting this to development/production, with a path under /tmp for development (so it doesn't need change when copying the sample) and a path under htroot (or something other recommended for such cases) for production?