created docker file

Dockerfile

@@ -0,0 +1,6 @@
+FROM node:18-alpine
+WORKDIR /app
+COPY . .
+RUN yarn install --production 
+CMD ["node", "src/index.js"]
+EXPOSE 3000

src/static/js/app.js

@@ -53,7 +53,7 @@ function TodoListCard() {
         <React.Fragment>
             <AddItemForm onNewItem={onNewItem} />
             {items.length === 0 && (
-                <p className="text-center">No items yet! Add one above!</p>
+                <p className="text-center">You have no todo items yet! Add one above!</p>
             )}
             {items.map(item => (
                 <ItemDisplay