update deployment documentation

hub/DEPLOYMENT.md

@@ -1,5 +1,21 @@
 ## Installing PostgreSQL Database Server on Linux (Ubuntu) ##
-Execute the *install_postgresql_linux.sh* script to install PostgreSQL database
+
+In the terminal, add the key to the keyring
+
+`
+sudo sh -c 'echo "deb http://apt.postgresql.org/pub/repos/apt $(lsb_release -cs)-pgdg main" > /etc/apt/sources.list.d/pgdg.list'
+wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | sudo apt-key add -
+`
+
+Update your repositories with 
+
+`sudo apt-get update`
+
+Install postgresql 
+
+`
+sudo apt-get install postgresql
+`
 *NB: PostgreSQL DB Server runs on a default port of 5432.*
 
 ## Installing PostgreSQL Database Server on Windows ##

hub/install_postgresql_linux.sh

@@ -1,6 +0,0 @@
-#!/bin/sh
-
-sudo sh -c 'echo "deb http://apt.postgresql.org/pub/repos/apt $(lsb_release -cs)-pgdg main" > /etc/apt/sources.list.d/pgdg.list'
-wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | sudo apt-key add -
-sudo apt-get update
-sudo apt-get install postgresql