Congratulations, you have successfully installed simpleSAMLphp. This is the start page of your installation, where you will find links to test examples, diagnostics, metadata and even links to relevant documentation.
About simpleSAMLphp
This simpleSAMLphp thing is pretty cool, where can I read more about it? You can find more information about simpleSAMLphp at the Feide RnD blog over at UNINETT.