Update README.md

basiclti/README.md

@@ -7,3 +7,7 @@ There are several internal documents that you might find useful ranging from tes
 documentation.  These documents are stored here in github:
 
 * [Sakai LTI Documentation](https://github.com/sakaiproject/sakai/tree/master/basiclti/basiclti-docs/resources/docs)
+
+Sakai has a unit test that we keep up-to-date with the latest LTi specifications.  It functions as both Consumer and Provider and exercises both standard services and Sakai's particular extensions.  I make this tool available online at
+
+* https://online.dr-chuck.com/sakai-api-test