Update README.md

Author: janvda

README.md

@@ -9,7 +9,7 @@ It consists of the following four docker containers (= TIG stack + nginx)
 3. [Grafana](https://grafana.com/) - create, explore and share dashboards
 4. [nginx](http://nginx.org/en/docs/) - configured as reverse-proxyserver so that the http/https request becomes routed to grafana (port 30000).
 
-The Grafana user interface can directly be accessed (login and password is `admin`) at port 80 of the host OS thanks to reverse-proxyserver ningx.  This also means that you can access it through the `public device URL` that you can find in your [BalenaCloud](https://www.balena.io/) dashboard.  In other words you can access your Grafana dashboards wherever you have internet access !
+The Grafana user interface can be accessed (login and password is `admin`) at port 30000 of the host OS, but thanks to nginx (reverse proxy) it can also be accessed at port 80 of the host OS.  This also means that you can access it through the `public device URL` that you can find in your [BalenaCloud](https://www.balena.io/) dashboard.  In other words you can access your Grafana dashboards wherever you have internet access !
 
 Here below a screenshot of the `system metrics` dashboard that is also provisioned by this application ( file is `grafana\dashboards\system metrics.json`)