Updated the list of generators

[okendoken]

Create full-stack CRUD web application boilerplate in minutes. Define database schema and get production-ready full-stack web app built with React, Angular or Vue.

Checklist:

• [x] I've read and understood Contributing Guidelines.
• [x] I've added the new resource at the end of its section.
• [x] This resource is out there for a while, and actively maintained.
• [x] This resource is popular enough and has at least a few hundred stars on GitHub.

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