ALTER TABLE article_categories 
  ADD COLUMN slug TEXT;

UPDATE article_categories SET slug = 'furniture' WHERE id = 1;
UPDATE article_categories SET slug = 'diy' WHERE id = 2;
UPDATE article_categories SET slug = 'interiors' WHERE id = 3;
UPDATE article_categories SET slug = 'wallpaper' WHERE id = 4;
UPDATE article_categories SET slug = 'home-decor' WHERE id = 5;
UPDATE article_categories SET slug = 'canvas-prints' WHERE id = 6;
UPDATE article_categories SET slug = 'wall-murals' WHERE id = 7;
UPDATE article_categories SET slug = 'style-guides' WHERE id = 8;
UPDATE article_categories SET slug = 'news' WHERE id = 9;
UPDATE article_categories SET slug = 'designers' WHERE id = 10;
UPDATE article_categories SET slug = 'wall-art' WHERE id = 11;
UPDATE article_categories SET slug = 'trends-inspiration' WHERE id = 12;
UPDATE article_categories SET slug = 'press-room' WHERE id = 13;
UPDATE article_categories SET slug = 'lighting' WHERE id = 14;
UPDATE article_categories SET slug = 'home-improvement' WHERE id = 15;