Adding blog post solution - challenge-5.

README.md

@@ -105,6 +105,7 @@ Here all the link solutions of each challenges published in **[dev.to](https://d
 | Task Scheduler (**#2**) | Implement a cron job using serverless - send a daily reminder via text (use twilio) about the current challenge | **[Azure Functions - Cron Job](https://docs.microsoft.com/en-us/azure/azure-functions/functions-bindings-twilio?WT.mc_id=25daysofserverless-github-cxa)** | **[Jen Looper](https://github.com/jlooper)** | **[Lucy's Dilemma](https://aka.ms/AA6qwkz)** |
 | Webhooks (**#3**) | Create a webhook with serverless that GitHub sends commit data | **[Azure Functions Docs](https://docs.microsoft.com/azure/azure-functions/?WT.mc_id=25daysofserverless-github-cxa)** | **[Christian Nwamba](https://github.com/christiannwamba)** | **[Github Commit (Push) Webhook](https://aka.ms/AA6r47c)** |
 | API Endpoint (**#4**) | Implement a function that connects to a database and returns data in a http response | **[Azure Functions - HTTP Trigger](https://docs.microsoft.com/en-us/azure/azure-functions/functions-bindings-http-webhook?tabs=javascript&WT.mc_id=25daysofserverless-github-cxa)** | **[Glaucia Lemos](https://github.com/glaucia86)** | **[Ezra's Potluck](https://aka.ms/AA6qz2v)** |
+| Smart Apps (**#5**) | Implement a function that calls the Cognitive Services text analytics API and translates/analyses sentiment for a given text | **[Text Analytics API Documentation](https://docs.microsoft.com/en-us/azure/cognitive-services/text-analytics/?WT.mc_id=25daysofserverless-github-cxa)** | **[Chris Noring](https://github.com/softchris)** | **[Naughty Or Nice](https://aka.ms/AA6r7f9)** |
 
 ## Contributing