Add project based on `serialization.zig` to the README

[SeanTUT]

Hey, I have made a project based upon serialization.zig, and I would like to add it to the README. This seems to be the first addition of a project into the README, so I started a bullet-point list of files and associated adaptations. If any maintainers would like to specify a different format for adding projects to the README, that would be great.

Lastly, a question about the licensing. This project started as just a port of the serialization.zig to modern Zig, but by now, most of the code has been rewritten from scratch outside of parts of some of the tests. I'm not sure where that puts me in terms of the MIT license on std.serialization. Does anyone with more experience know whether the zig MIT license applies to the code?

[SeanTUT]

I should note that the project has recently been updated to 0.14.0, and been given an MIT license. Additionally, Zig's MIT license is now properly attributed in the source. Courtesy of @nat3Github