There are many good reasons for doing version control, but in this case as it relates to the database it doesn't make any sense to me.
It would probably be a good idea to use git
to version control your writing, and editing of the articles before publishing them to the db. If an article needs to be updated after being published, then write a completely new article. You'd probably want to edit the original article and add a comment which points to the updated article.
The choice between updating the original article or writing a completely new one will depend on the amount and type of changes that it needs.