Update schema-stitching.md (#1561)

On version 3.1.1 there is an error ( `Error: Invalid schema passed` ) when wrapping the `linkTypeDefs` in `gql`. Passing the plain string the example works.
apollographql · Sep 20, 2018 · 3b21ade · 3b21ade
1 parent f2a4673
commit 3b21ade
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/docs/source/features/schema-stitching.md b/docs/source/features/schema-stitching.md
@@ -151,7 +151,7 @@ Combining existing root fields is a great start, but in practice we will often w
 To add this ability to navigate between types, we need to _extend_ existing types with new fields that translate between the types:
 
 ```js
-const linkTypeDefs = gql`
+const linkTypeDefs = `
   extend type User {
     chirps: [Chirp]
   }