diff --git a/README.md b/README.md
index 56dd2b1..0f48842 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,6 @@
 gtfs-mysql
 ==========
 
-This repository is a MySQL database schema for the GTFS specification.
+This repository is a MySQL database schema for the GTFS (General Transit Feed Specification). 
+This builds on the SQl schema provided at https://github.com/sbma44/py-gtfs-mysql by adding support
+for all possible tables and fields within the specification.