Update README.md local deployment instructions and enhance NoPage component message

Author: Vamshi-Microsoft

README.md

@@ -182,7 +182,7 @@ To review Cosmos DB configuration overview and steps, follow the link [here](doc
 ![Solution Architecture - Chat with your data CosmosDB](/docs/images/architecture_cdb.png)
 
 ### Deploy instructions
-The "Deploy to Azure" button offers a one-click deployment where you don’t have to clone the code. If you would like a developer experience instead, follow the [local deployment instructions](./docs/LOCAL_DEPLOYMENT.md).
+The "Deploy to Azure" button offers a one-click deployment where you don’t have to clone the code. If you would like a developer experience instead, follow the [local deployment instructions](./docs/LOCAL_DEPLOYMENT-Test.md).
 
 Once you deploy to Azure, you will have the option to select PostgreSQL or Cosmos DB, see screenshot below.
 

code/frontend/src/pages/NoPage.tsx

@@ -1,5 +1,5 @@
 const NoPage = () => {
-    return <h1>404</h1>;
+    return <h1>404 Page Not Found</h1>;
 };
 
 export default NoPage;