Add ITS Duo note.

content/accounts/setting_up_and_using_duo.md

@@ -4,6 +4,12 @@ description = "Duo Setup Instructions"
 weight = "8"
 +++
 
+{{% notice note %}}
+The information here only pertains to using Duo with Holland Computing Center accounts.
+For help with your general University (i.e. TrueYou) account and Duo, contact
+the [Huskertech Help Center](https://its.unl.edu/helpcenter/) via email at {{< icon name="envelope" >}}[support@nebraska.edu](mailto:support@nebraska.edu).
+{{% /notice %}}
+
 ##### **Use of Duo two-factor authentication (https://www.duosecurity.com) is required for access to HCC resources.**
 
 Users will connect via SSH and enter their username/passwords as usual. One additional