Updated info in the readme

README.md

@@ -4,6 +4,14 @@
 
 This is intended to be a library for writing unit tests in a way that resembles xUnit (in as much as it can).
 
+### Credits
+
+This project is inspired by xUnit, after using those in Java and C# it seemed like having something _similar_ for Vala might be a good idea. 
+
+The project here is inspired by the work of Michael Gratton, for testing the Geary mail client from the Gnome project. The code for this can be found here:
+
+https://gitlab.gnome.org/dilinger/geary/-/blob/mainline/test/test-case.vala
+
 ## Usage
 
 This section will be littered with examples later...