Updates readme

Author: rsangole

README.md

@@ -8,4 +8,6 @@
 1. Check the configuration in `docker-compose.yml` for your postgres database settings and docker images
 1. To run RStudio and Postgres together, run `docker-compose up -d`
 1. Connect to RStudio in a browser using `localhost:8787`
-1. Test your database by running `postgres.R`
+1. Test your database by running `postgres.R`
+
+As a short cut to run docker & open a browser for RStudio, run `docker-compose up -d; firefox localhost:8787`