added new script for identity federation security contacts

README.md

 # eduGAIN Contacts
 
-This script will download the current edugain metadata aggregate XML and parse it
-to derive a list of contacts in CSV format. The list will be printed to stdout.
+This repository contains tools to parse contacts from eduGAIN metadata and from 
+the eduGAIN APIs published on https://technical.edugain.org/api.php.
+
+## Identity federations security contacts
+
+Script name :`identity_federations_security_contacts.py`
+
+This script consume the eduGAIN API to retrieve the details of all the eduGAIN identity 
+federations and parse it to create a list of security email addresses, if available, and 
+the corresponding federation name in CSV format. This list will be printed to stdout.
+
+
+## Entities security contacts
+
+Script: `entities_security_contacts.py`
+
+This script will download the current edugain metadata aggregate XML and parse all the 
+identity providers found in order to derive a list of Organization names, domains and 
+security contacts in CSV format. This list will be printed to stdout.
+