Add badgets and update security contact

Author: pitbulk

README.md

@@ -1,6 +1,6 @@
 # SAML PHP Toolkit
 
-[![Build Status](https://api.travis-ci.org/onelogin/php-saml.png?branch=master)](http://travis-ci.org/onelogin/php-saml) [![Coverage Status](https://coveralls.io/repos/onelogin/php-saml/badge.png)](https://coveralls.io/r/onelogin/php-saml) [![License](https://poser.pugx.org/onelogin/php-saml/license.png)](https://packagist.org/packages/onelogin/php-saml)
+[![php-saml package](https://github.com/SAML-Toolkits/php-saml/actions/workflows/php-package.yml/badge.svg?branch=master)](https://github.com/SAML-Toolkits/php-saml/actions/workflows/php-package.yml) [![Coverage Status](https://coveralls.io/repos/onelogin/php-saml/badge.png)](https://coveralls.io/r/onelogin/php-saml) ![Packagist Dependency Version (specify version)](https://img.shields.io/packagist/dependency-v/onelogin/php-saml/php?version=2.19.1) [![License](https://poser.pugx.org/onelogin/php-saml/license.png)](https://packagist.org/packages/onelogin/php-saml) ![Packagist Downloads](https://img.shields.io/packagist/dm/onelogin/php-saml) ![Packagist Downloads](https://img.shields.io/packagist/dt/onelogin/php-saml?label=Total%20downloads)
 
 Add SAML support to your PHP software using this library.
 
@@ -31,7 +31,7 @@ php-saml < v2.10.0 is vulnerable and allows signature wrapping!
 Security Guidelines
 -------------------
 
-If you believe you have discovered a security vulnerability in this toolkit, please report it as an issue
+If you believe you have discovered a security vulnerability in this toolkit, please report it by mail to the maintainer: sixto.martin.garcia+security@gmail.com
 
 
 Why add SAML support to my software?