Update quickstart-java.md

typo in passwordless async tab

Author: TheovanKraay

articles/cosmos-db/nosql/quickstart-java.md

@@ -291,7 +291,7 @@ Now go back to the Azure portal to get your connection string information and la
 
 7. The app doesn't delete the created resources. Switch back to the portal to [clean up the resources](#clean-up-resources).  from your account so that you don't incur charges.
 
-## [Passwordless Aync API](#tab/passwordlessasync)
+## [Passwordless Async API](#tab/passwordlessasync)
 
 [!INCLUDE [java-default-azure-credential-overview](../../../includes/passwordless/java-default-azure-credential-overview.md)]