In the first article of this series, we configured Drupal core. Now we have to configure all the content types.
This site has four different content types: page, project, partner (this is for internal use) and article. Those articles are the blog posts. I am not using the blog module here, a blog is just a bunch of articles sorted by date, you don't need the blog module for that.
Anyway, Let's focus on our subject: configuring the content types to work in multiple languages.