Update troubleshoot-dot-net-sdk.md

Removed colon from heading

Author: ShannonLeavitt

articles/cosmos-db/troubleshoot-dot-net-sdk.md

@@ -13,7 +13,7 @@ ms.reviewer: sngun
 This article covers common issues, workarounds, diagnostic steps, and tools when you use the [.NET SDK](sql-api-sdk-dotnet.md) with Azure Cosmos DB SQL API accounts.
 The .NET SDK provides client-side logical representation to access the Azure Cosmos DB SQL API. This article describes tools and approaches to help you if you run into any issues.
 
-## Checklist for troubleshooting issues:
+## Checklist for troubleshooting issues
 Consider the following checklist before you move your application to production. Using the checklist will prevent several common issues you might see. You can also quickly diagnose when an issue occurs:
 
 *    Use the latest [SDK](sql-api-sdk-dotnet-standard.md). Preview SDKs should not be used for production. This will prevent hitting known issues that are already fixed.