[SQL] add content tag to tutorial NPCs

[Grahf0085]

I affirm:

• I understand that if I do not agree to the following points by completing the checkboxes my PR will be ignored.
• I understand I should leave resolving conversations to the LandSandBoat team so that reviewers won't miss what was said.
• I have read and understood the Contributing Guide and the Code of Conduct.
• I have tested my code and the things my code has changed since the last commit in the PR and will test after any later commits.

What does this pull request do?

Adds WOTG content tag to tutorial NPCs. They are listed here: https://www.bg-wiki.com/ffxi/Category:Tutorial_NPC
On this page there is a section titled September 9th 2008 that says "Tutorial NPCs added": https://www.bg-wiki.com/ffxi/The_History_of_Final_Fantasy_XI/2008

Hope this is better than last content_tag PR. Thank you

Steps to test these changes

run dbtool