Re: [whatwg/url] Explain how syntax relates to the parser for hosts and URLs (#228)

Thank you both! Getting somewhere.

Commit message:
```
Attempt to explain valid input better

In particular, do away with the word "syntax" as that causes lots of confusion and focus on validity instead. Also explain the relationship between the parser, serializer, model, and (valid) input.

"Syntax violation" is now known as "validation error".

Fixes #118 and fixes part of #209.
```

-- 
You are receiving this because you are subscribed to this thread.
Reply to this email directly or view it on GitHub:
https://github.com/whatwg/url/pull/228#issuecomment-278717977