Upgrade README file

Author: pacoogle

README.md

@@ -1,2 +1,18 @@
 # laravel-lumen-docker
 Laravel, Lumen platform dockerization
+
+## Start environment
+To start docker environment, you must install [Docker](https://www.docker.com/get-started) and digit this command in your favorite terminal:
+```sh
+make docker-start
+```
+When the process finished you can open your browser and digit http://localhost:8181 to se you app works!
+
+## Stop environment
+To stop your environment you must digit this command in your favorite terminal:
+```sh
+make docker-stop
+```
+
+## Customization
+Currently in the "lumen" folder you will find the dist 6.2 of Lumen but if you want to customize the dist or use Laravel you can manually configure the docker-compose.yml file indicating where the code of your app resides