Add badges to readme

Author: tvdijen

README.md

@@ -1,5 +1,10 @@
-OpenConext Stepup Second Factor Only Authproc Filter for SimpleSAMLphp
-======================================================================
+# OpenConext Stepup Second Factor Only Authproc Filter for SimpleSAMLphp
+
+![Build Status](https://github.com/OpenConextApps/simplesamlphp-module-stepupsfo/workflows/CI/badge.svg?branch=main)
+[![Scrutinizer Code Quality](https://scrutinizer-ci.com/g/OpenConextApps/simplesamlphp-module-stepupsfo/badges/quality-score.png?b=main)](https://scrutinizer-ci.com/g/OpenConextApps/simplesamlphp-module-stepupsfo/?branch=main)
+[![Coverage Status](https://codecov.io/gh/OpenConextApps/simplesamlphp-module-stepupsfo/branch/main/graph/badge.svg)](https://codecov.io/gh/OpenConextApps/simplesamlphp-module-stepupsfo)
+[![Type Coverage](https://shepherd.dev/github/OpenConextApps/simplesamlphp-module-stepupsfo/coverage.svg)](https://shepherd.dev/github/OpenConextApps/simplesamlphp-module-stepupsfo)
+[![Psalm Level](https://shepherd.dev/github/OpenConextApps/simplesamlphp-module-stepupsfo/level.svg)](https://shepherd.dev/github/OpenConextApps/simplesamlphp-module-stepupsfo)
 
 See [documentation](docs/stepupsfo.md).
 
@@ -8,4 +13,4 @@ Copyright 2018-2022 SURF B.V.
 Licensed under the CC-GNU LGPG version 2.1 or any later version.
 See [COPYING](COPYING) for details.
 
-Requires at least SimpleSAMLphp 1.19 and PHP 5.4.
+Requires at least SimpleSAMLphp 2.0.0 and PHP 7.4.