docs: enhance README with project inspiration and usage references

Author: Mathious6

README.md

@@ -34,6 +34,12 @@ func main() {
 - Simple, fast, and dependency-free
 - Always returns a string in the format `XX-000-000-XX`
 
+## Inspiration
+This project was inspired by [hugoattal/hashplate](https://github.com/hugoattal/hashplate), a tiny and fast library to generate human-readable hashes in the style of license plates.
+
+## Used in
+- [Mathious6/httpkit](https://github.com/Mathious6/httpkit)
+
 ---
 
 Feel free to open issues or PRs for improvements!