Apply suggestions from code review

Co-authored-by: Thomas Gauvin <[email protected]>

Author: craigshoemaker

articles/static-web-apps/database-azure-cosmosdb.md

@@ -363,7 +363,7 @@ async function get() {
   const gql = `
     query getById($id: Int!) {
       person_by_pk(id: $id) {
-        Id
+        id
         Name
       }
     }`;