docs(detector-github): add useful links (#600)

Keeps aligned with other packages in the repo.

Co-authored-by: Valentin Marchaud <contact@vmarchaud.fr>

detectors/node/opentelemetry-resource-detector-github/README.md

@@ -1,5 +1,10 @@
 # OpenTelemetry Resource Detector for GitHub Actions
 
+[![NPM Published Version][npm-img]][npm-url]
+[![dependencies][dependencies-image]][dependencies-url]
+[![devDependencies][devDependencies-image]][devDependencies-url]
+[![Apache License][license-image]][license-image]
+
 Resource detector for GitHub Actions.
 
 Detects `GITHUB_*` environment variables [specified here](https://docs.github.com/en/free-pro-team@latest/actions/reference/environment-variables) and adds as attributes on a resource.
@@ -30,4 +35,21 @@ run()
 
 ## Useful links
 
-* [GitHub Action Enviornment Variables](https://docs.github.com/en/free-pro-team@latest/actions/reference/environment-variables)
+- [GitHub Action Enviornment Variables](https://docs.github.com/en/free-pro-team@latest/actions/reference/environment-variables)
+- For more information on OpenTelemetry, visit: <https://opentelemetry.io/>
+- For more about OpenTelemetry JavaScript: <https://github.com/open-telemetry/opentelemetry-js>
+- For help or feedback on this project, join us in [GitHub Discussions][discussions-url]
+
+## License
+
+Apache 2.0 - See [LICENSE][license-url] for more information.
+
+[discussions-url]: https://github.com/open-telemetry/opentelemetry-js/discussions
+[license-url]: https://github.com/open-telemetry/opentelemetry-js-contrib/blob/main/LICENSE
+[license-image]: https://img.shields.io/badge/license-Apache_2.0-green.svg?style=flat
+[dependencies-image]: https://status.david-dm.org/gh/open-telemetry/opentelemetry-js-contrib.svg?path=detectors%2Fnode%2Fopentelemetry-resource-detector-github
+[dependencies-url]: https://david-dm.org/open-telemetry/opentelemetry-js-contrib?path=detectors%2Fnode%2Fopentelemetry-resource-detector-github
+[devDependencies-image]: https://status.david-dm.org/gh/open-telemetry/opentelemetry-js-contrib.svg?path=detectors%2Fnode%2Fopentelemetry-resource-detector-github&type=dev
+[devDependencies-url]: https://david-dm.org/open-telemetry/opentelemetry-js-contrib?path=detectors%2Fnode%2Fopentelemetry-resource-detector-github&type=dev
+[npm-url]: https://www.npmjs.com/package/@opentelemetry/resource-detector-github
+[npm-img]: https://badge.fury.io/js/%40opentelemetry%2Fresource-detector-github.svg