add missing generic type parameter for mutation tutorial example (#4981)

Summary:
https://relay.dev/docs/tutorial/mutations-updates/#step-4--modify-the-updatable-data

This step of the tutorial is currently giving us type errors.

![CleanShot 2025-05-05 at 18 09 58@2x](https://github.com/user-attachments/assets/02359c4b-5910-4c81-9b12-2d914dbd7eca)

This is because we are missing the generic type parameter.

Note that this will also require us to upstream the relay dependencies in the example to the latest v19: relayjs/relay-examples#333

After that, our tutorial will be working properly with no type error!

Pull Request resolved: #4981

Reviewed By: evanyeung

Differential Revision: D74219468

Pulled By: captbaritone

fbshipit-source-id: f2c37de0d0400e0a376cdd7ca89c1c7ef3bd0946

Author: itsjoeoui

website/docs/tutorial/mutations-updates.md

@@ -359,7 +359,7 @@ function StoryLikeButton({story}) {
         const {
           // color1
           updatableData
-        } = store.readUpdatableFragment(
+        } = store.readUpdatableFragment<StoryLikeButton_updatable$key>(
           // color2
           fragment,
           // color3
@@ -384,7 +384,11 @@ function StoryLikeButton({story}) {
             doesViewerLike
           }
         `;
-        const {updatableData} = store.readUpdatableFragment(fragment, story);
+        const { updatableData } =
+          store.readUpdatableFragment<StoryLikeButton_updatable$key>(
+            fragment,
+            story
+          );
         // change
         const alreadyLikes = updatableData.doesViewerLike;
         updatableData.doesViewerLike = !alreadyLikes;

website/versioned_docs/version-v19.0.0/tutorial/mutations-updates.md

@@ -359,7 +359,7 @@ function StoryLikeButton({story}) {
         const {
           // color1
           updatableData
-        } = store.readUpdatableFragment(
+        } = store.readUpdatableFragment<StoryLikeButton_updatable$key>(
           // color2
           fragment,
           // color3
@@ -384,7 +384,11 @@ function StoryLikeButton({story}) {
             doesViewerLike
           }
         `;
-        const {updatableData} = store.readUpdatableFragment(fragment, story);
+        const { updatableData } =
+          store.readUpdatableFragment<StoryLikeButton_updatable$key>(
+            fragment,
+            story
+          );
         // change
         const alreadyLikes = updatableData.doesViewerLike;
         updatableData.doesViewerLike = !alreadyLikes;