Update deleting-an-organization-account.md (#16714)

Co-authored-by: Melanie Yarbrough <[email protected]>

Author: yamiacat

content/github/setting-up-and-managing-organizations-and-teams/deleting-an-organization-account.md

@@ -20,7 +20,7 @@ versions:
 
 ### 1. Back up your organization content
 
-Once you delete an organization, GitHub **cannot restore your content**. Therefore, before you delete your organization, make sure you have a copy of all repositories, wikis, and issues from the account.
+Once you delete an organization, GitHub **cannot restore your content**. Therefore, before you delete your organization, make sure you have a copy of all repositories, wikis, issues, and project boards from the account.
 
 ### 2. Delete the organization