README: add Fuego to dependents (#1017)

README.md

@@ -17,6 +17,7 @@ The project has received pull requests [from many people](https://github.com/get
 Please, [give back to this project](https://github.com/sponsors/fenollp) by becoming a sponsor.
 
 Here's some projects that depend on _kin-openapi_:
+  * [github.com/go-fuego/fuego](https://github.com/go-fuego/fuego) - "Framework generating OpenAPI 3 spec from source code"
   * [github.com/a-h/rest](https://github.com/a-h/rest) - "Generate OpenAPI 3.0 specifications from Go code without annotations or magic comments"
   * [github.com/Tufin/oasdiff](https://github.com/Tufin/oasdiff) - "A diff tool for OpenAPI Specification 3"
   * [github.com/danielgtaylor/apisprout](https://github.com/danielgtaylor/apisprout) - "Lightweight, blazing fast, cross-platform OpenAPI 3 mock server with validation"