Update readme and rename license file

.gitignore

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-node_modules
+node_modules/
-package-lock.json

LICENSE.txt

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+
                                  Apache License
                            Version 2.0, January 2004
                         http://www.apache.org/licenses/

README.md

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-# proxmox-ve-openapi
+# Proxmox VE OpenAPI
-An OpenAPI Spec for the ProxMox VE Rest API
+
+Generate OpenAPI spec from Proxmox VE REST API.
+
+[![Apache 2.0 License][apache-badge]][apache-url]
+[![Discord Chat][discord-badge]][discord-url]
+
+[apache-badge]: https://img.shields.io/badge/license-Apache%202.0-blue.svg
+[apache-url]: https://github.com/tribufu-forks/proxmox-ve-openapi/blob/master/LICENSE.txt
+[discord-badge]: https://img.shields.io/discord/276504514616623104.svg?logo=discord&style=flat-square
+[discord-url]: https://www.tribufu.com/discord
+
+[Website](https://www.tribufu.com) |
+[Discord](https://www.tribufu.com/discord)
+
+## Credits
+
+This project was forked from: [LUMASERV/proxmox-ve-openapi].
+
+[LUMASERV/proxmox-ve-openapi]: https://github.com/LUMASERV/proxmox-ve-openapi
+
+## License
+
+This project is licensed under the [Apache License 2.0].
+
+[Apache License 2.0]: https://github.com/tribufu-forks/proxmox-ve-openapi/blob/master/LICENSE.txt