chore: update README

plugins/node/opentelemetry-plugin-koa/README.md

@@ -1,7 +1,7 @@
 # OpenTelemetry Koa Instrumentation for Node.js
 [![Gitter chat][gitter-image]][gitter-url]
-<!-- [![dependencies][dependencies-image]][dependencies-url]
-[![devDependencies][devDependencies-image]][devDependencies-url] -->
+[![dependencies][dependencies-image]][dependencies-url]
+[![devDependencies][devDependencies-image]][devDependencies-url]
 [![Apache License][license-image]][license-image]
 
 This module provides automatic instrumentation for [`Koa`](https://github.com/koajs/koa).
@@ -43,6 +43,8 @@ const { NodeTracerProvider } = require('@opentelemetry/node');
 const provider = new NodeTracerProvider();
 ```
 
+See [examples/koa](https://github.com/open-telemetry/opentelemetry-js-contrib/tree/master/examples/koa) for a short example using both Koa and @koa/router
+
 ## Useful links
 - For more information on OpenTelemetry, visit: <https://opentelemetry.io/>
 - For more about OpenTelemetry JavaScript: <https://github.com/open-telemetry/opentelemetry-js>
@@ -54,6 +56,13 @@ Apache 2.0 - See [LICENSE][license-url] for more information.
 
 [gitter-image]: https://badges.gitter.im/open-telemetry/opentelemetry-js.svg
 [gitter-url]: https://gitter.im/open-telemetry/opentelemetry-node?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge
-[license-url]: https://github.com/open-telemetry/opentelemetry-js/blob/master/LICENSE
+[license-url]: https://github.com/open-telemetry/opentelemetry-js-contrib/blob/master/LICENSE
 [license-image]: https://img.shields.io/badge/license-Apache_2.0-green.svg?style=flat
+[dependencies-image]: https://david-dm.org/open-telemetry/opentelemetry-js-contrib?path=plugins%2Fnode%2Fopentelemetry-plugin-express
+
+[dependencies-url]: https://david-dm.org/open-telemetry/opentelemetry-js-contrib?path=plugins%2Fnode%2Fopentelemetry-plugin-express
+
+[devDependencies-image]: https://david-dm.org/open-telemetry/opentelemetry-js-contrib?path=plugins%2Fnode%2Fopentelemetry-plugin-express
+
+[devDependencies-url]: https://david-dm.org/open-telemetry/opentelemetry-js-contrib?path=plugins%2Fnode%2Fopentelemetry-plugin-express&type=dev