diff --git a/ayanova/devdocs/todo.txt b/ayanova/devdocs/todo.txt
index 3d1f725a..a935a9cd 100644
--- a/ayanova/devdocs/todo.txt
+++ b/ayanova/devdocs/todo.txt
@@ -25,7 +25,7 @@ todo: AyaNova customer branding to login form / upload logos etc **UPDATED, SEE
 				Auth for update and unauthorized to read
 				Set file types preset, so one small logo, one large logo maybe and various report logos?
 					Fixed so that people don't upload the phone book and then just choose one to use and let the rest take up space
-					
+	https://docs.microsoft.com/en-us/aspnet/core/mvc/models/file-uploads?view=aspnetcore-3.1#upload-small-files-with-buffered-model-binding-to-a-database				
 
 
 todo: Document in user manual the Widget form as an example with instruction on how to use the various controls etc