diff --git a/README.md b/README.md
index 4e88616f..5a4dec1d 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,8 @@
 
 Revit SDK Documentation and Samples.
 
-Initial commit from Revit SDK installed from REVIT_2020_SDK.msi, 367304704 bytes, Mar 28 10:40.
+Initial commit from Revit SDK installed from REVIT_2020_SDK.msi, 367304704 bytes, Mar 28 10:40, downloaded from
+the [Revit Developer Center](http://www.autodesk.com/developrevit).
 
 The model RVT files and some other large sample files are omitted from this repository by adding the following lines to `.gitignore`: