Add tschema

[xeusteerapat]

Please briefly describe the project you'd like to add to Best of JS?

• A tiny (490b) utility to build JSON schema types.

What is the GitHub repository of the project you'd like to add to Best of JS?

• https://github.com/lukeed/tschema

Before submitting the request to add a new project, please check the following points:

• [x] The project is related to the web platform or Node.js
• [x] The source code is on GitHub and project has more than 100 stars on GitHub
• [x] The project has thorough documentation in English
• [x] The project is not deprecated and actively maintained

How would this project be tagged? (Pick one or several existing tags from this list: https://bestofjs.org/tags)

• Schema

Also you can suggest new tags to add if you think Best of JS is missing useful tags.