diff --git a/README.md b/README.md
index 57f9f60..0b30f41 100644
--- a/README.md
+++ b/README.md
@@ -9,4 +9,6 @@ Sorry.
 ## Manual
 
 User instructions can be found at trueControl BASIC:
-* https://basic.truecontrol.org/database/dc32/retro-tech-gat/
\ No newline at end of file
+* https://basic.truecontrol.org/database/dc32/retro-tech-gat/
+
+Firmware is a MounRiver Studio project. You can freely download MounRiver Studio at http://mounriver.com/download