update episode list

index.md

@@ -26,12 +26,15 @@ Time | Section | Description
 00:25 | [1. The CO Person Object](/_episodes/01-COperson.md) | Understand the CO Person object - the primary object for representing people in COmanage. What does this object contain?
 00:25 | [2. The Org Identity Object](/_episodes/02-orgIdentity.md) | Understanding Org Identity Objects and how they are connected to representations of people external to COmanage.
 
-3. [3. About Attributes](/_episodes/03-attributes.md)
-4. [4. About Authenticators](/_episodes/04-authenticators.md) 
-5. [5. About Roles](/_episodes/05-roles.md)
-6. [6. About Groups](/_episodes/06-groups.md)
-7. [7. Model Your Own People](/_episodes/07-youTryModelPeople.md)
-8. [8. Your first person](/_episodes/08-youTryFirstPerson.md)
+5. [3. About Roles](/_episodes/03-roles.md)
+6. [4. About Groups](/_episodes/04-groups.md)
+7. [5. Model Your Own People](/_episodes/05-youTryModelPeople.md)
+8. [6. Your first person](/_episodes/06-youTryFirstPerson.md)
+
+Not used
+
+* [About Attributes](/_episodes/notUsed-attributes.md)
+
 
 _The actual schedule may vary slightly depending on the topics and exercises chosen by the instructor._