Fix typo

NodeJS -> Node.js

Author: changeworld

articles/spring-apps/enterprise/quickstart-sample-app-acme-fitness-store-introduction.md

@@ -38,7 +38,7 @@ This quickstart applies this architecture to a Fitness Store application. This a
 - One ASP.NET Core application:
   - **Order Service** places orders to buy products that are in the users' carts.
 
-- One NodeJS and static HTML application:
+- One Node.js and static HTML application:
   - **Frontend** is the shopping application that depends on the other services.
 
 ## Next steps