Removes direct Document::create() calls that referenced the dropped
title/content/rendered_html columns. Initial seed now creates the
default-locale translation through the service.
- Add DocumentSeeder with Home, Getting Started, and Markdown Guide
- Update DatabaseSeeder to call UserSeeder and DocumentSeeder
- Update UserSeeder to set is_admin flag
- Update README with seeder documentation
Yutaka Kurosaki
y963admin