tweaks to readme

Author: dudash

dc-metro-map/README.md

@@ -11,10 +11,14 @@ This app is configured to be deployed and managed via OpenShift.  Which means al
 * If you have OpenShift Enterprise, [follow instructions here][2] 
 * If you are using this as part of a Red Hat workshop, follow the provided instructions instead
 
+## Notes
+This lab code requires access to api.mapbox.com in order to run.
+
 ## License
-Under the terms of the [MIT][7].
+Under the terms of the [MIT][4].
 
 
 [1]: https://developers.openshift.com/en/getting-started-overview.html
 [2]: https://docs.openshift.com/enterprise/latest/welcome/index.html
-[3]: https://docs.openshift.org/latest/using_images/s2i_images/nodejs.html
+[3]: https://docs.openshift.org/latest/using_images/s2i_images/nodejs.html
+[4]: https://opensource.org/licenses/MIT