overall feedback

[gvwilson]

• the glossary is interesting, I've never seen that before and it's a really cool idea
• some links seem to be broken (like https://third-bit.com/sdxjs/pattern-matching/ links to https://third-bit.com/sdxjs/pattern-matching/regex-any.js which is a 404)
• I don't understand how to download the code in the book. There's a "download examples" link in the sidebar which contains a bunch of shell scripts, but I don't understand what those shell scripts are supposed to do, and it doesn't contain any code.