Add instructions

Co-authored-by: Chad Retz <[email protected]>

message_passing/update_with_start/lazy_initialization/README.md

@@ -4,7 +4,7 @@ This sample illustrates the use of update-with-start to send Updates to a Workfl
 it is not running yet. The Workflow represents a Shopping Cart in an e-commerce application, and
 update-with-start is used to add items to the cart, receiving back the updated cart subtotal.
 
-Run the following from this directory:
+To run, first see [README.md](../../README.md) for prerequisites. Then, run the following from this directory:
 
     poetry run python worker.py