Add installation instructions

Add installation instructions

README.md

@@ -1,3 +1,17 @@
 This script is based on the install script from André Schenkels (https://github.com/aschenkels-ictstudio/openerp-install-scripts)
 but goes a bit further. This script will also give you the ability to define an xmlrpc_port in the .conf file that is generated under /etc/
 This script can be safely used in a multi-odoo code base server because the default Odoo port is changed BEFORE the Odoo is started.
+
+<h3>Installation procedure</h3>
+1. Download the script:
+```
+sudo wget https://raw.githubusercontent.com/Yenthe666/InstallScript/9.0/odoo_install.sh
+```
+2. Make the script executable:
+```
+sudo chmod +x odoo_install.sh
+```
+3. Execute the script:
+```
+sudo ./odoo_install.sh
+```