How do you give users access to create templates? I'm the admin for our account but I don't know how to add this permission

Here is a DocuSign article on changing the User Permission Sets. So every DocuSign User has a corresponding DocuSign Permission Set. You need to alter the existing Permission Set (if not a DocuSign default permission set) or create a new Permission Set with the explicit rights needed.

https://support.docusign.com/en/guides/ndse-admin-guide-permission-sets