README.md: Fix broken link

Bug: b/358418186
Change-Id: Iaeae1d7d9aadf9b89d544a8f680b1078f7a86d5a
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/showcase/sense/+/228369
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
Reviewed-by: Hector Ayala <hayala@google.com>
Reviewed-by: Keir Mierle <keir@google.com>
Presubmit-Verified: CQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com>
Commit-Queue: Rob Mohr <mohrr@google.com>
diff --git a/README.md b/README.md
index 0c7b3be..79f98df 100644
--- a/README.md
+++ b/README.md
@@ -7,5 +7,6 @@
 Welcome to Pigweed Sense, a tour of key Pigweed components experienced
 through an imagined air quality product.
 
-Please visit the tutorial to get started:
-https://pigweed.dev/docs/showcase/sense/tutorial/
+Please visit [Sense: An interactive tour through
+Pigweed](https://pigweed.dev/docs/showcases/sense/) to get started.
+