diff --git a/README.md b/README.md
index 7fd7714..483793e 100644
--- a/README.md
+++ b/README.md
@@ -168,3 +168,5 @@ See [docs/TESTING.md](docs/TESTING.md).
 ## License
 
 GPL-2.0-or-later.
+
+<!-- Public repo: Playground preview links are now available on PRs. -->