ProtoDef-io/ProtoDef ? reverse-engineered prompt

Build me a clean documentation site for ProtoDef, the idea is to let someone describe a network protocol in a simple JSON format and then understand how to read and write it easily.

I want the site to clearly explain the basic datatype rules and the protocol format, and include the JSON schema for the datatype definitions so people can validate their files. Please make it easy to browse, search, and follow with good examples, especially for someone trying to define a protocol for something like a game or other network app.

Keep the design simple and readable, with a nice layout for docs, examples, and schema reference. If you need to look up any current docs or best practices while building it, go ahead. Also add a small test setup so the examples and schema stay consistent.