added pricing links in costs section in readme

Author: Rohini-Microsoft

README.md

@@ -313,6 +313,9 @@ You can try the [Azure pricing calculator](https://azure.microsoft.com/en-us/pri
 * Azure Container App: Consumption tier with 0.5 CPU, 1GiB memory/storage. Pricing is based on resource allocation, and each month allows for a certain amount of free usage. [Pricing](https://azure.microsoft.com/pricing/details/container-apps/)
 * Azure Container Registry: Basic tier. [Pricing](https://azure.microsoft.com/pricing/details/container-registry/)
 * Log analytics: Pay-as-you-go tier. Costs based on data ingested. [Pricing](https://azure.microsoft.com/pricing/details/monitor/)
+* Azure SQL Server: General Purpose Tier. [Pricing](https://azure.microsoft.com/pricing/details/azure-sql-database/single/)
+* Azure Cosmos DB: [Pricing](https://azure.microsoft.com/en-us/pricing/details/cosmos-db/autoscale-provisioned/)
+* Azure functions: Consumption tier [Pricing](https://azure.microsoft.com/en-us/pricing/details/functions/)
 
 ⚠️ To avoid unnecessary costs, remember to take down your app if it's no longer in use,
 either by deleting the resource group in the Portal or running `azd down`.