diff --git a/ideas/split-loop-with-lambda/exercise/csharp/README.md b/ideas/split-loop-with-lambda/exercise/csharp/README.md
index 9fe3f3a..3b3f858 100644
--- a/ideas/split-loop-with-lambda/exercise/csharp/README.md
+++ b/ideas/split-loop-with-lambda/exercise/csharp/README.md
@@ -4,6 +4,7 @@ Three C# demo examples for the **Slice with Lambda** refactoring.
 Condensed mechanics: https://www.sammancoaching.org/refactorings/slice.html
 (where that page says mock, we use a lambda instead).
 Full Java walkthrough: `../../storyboard/storyboard.md`.
+Slides: `~/qwan/slides-rjs/decks/refactoring/slice-with-lambda/slides.md`, served at http://localhost:9001/#/refactoring/slice-with-lambda.
 
 ## The three examples