A few more language improvements

Author: abhahn

articles/ai-services/openai/how-to/use-web-app.md

@@ -82,7 +82,7 @@ After you turn on chat history, your users can show and hide it in the upper-rig
 
 ## Deleting your Cosmos DB instance
 
-Deleting your web app doesn't delete your Cosmos DB instance automatically. To delete your Cosmos DB instance along with all stored chats, you need to go to the associated resource in the [Azure portal](https://portal.azure.com) and delete it. If you delete the Cosmos DB resource but keep the chat history option selected on subsequent updates from the Azure OpenAI Studio, your users are notified of a connection error. However, they can continue to use the web app without access to the chat history.
+Deleting your web app doesn't delete your Cosmos DB instance automatically. To delete your Cosmos DB instance along with all stored chats, you need to go to the associated resource in the [Azure portal](https://portal.azure.com) and delete it. If you delete the Cosmos DB resource but keep the chat history option selected on subsequent updates from the Azure OpenAI Studio, the application notifies the user of a connection error. However, the user can continue to use the web app without access to the chat history.
 
 ## Enabling Microsoft Entra ID authentication between services