diff --git a/src/blog/article1.md b/src/blog/article1.md
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 layout: article
 title: Using Eleventy to build a static site
 date: 2022-02-14
+category: "cat1"
 ---
 
 Having landed on this Eleventy starter, you probably are no stranger to Eleventy. But if you are, you should definitely check out its benefits. Getting started with Eleventy is quick and easy.
diff --git a/src/blog/article2.md b/src/blog/article2.md
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 layout: article
 title: A slightly more advanced Eleventy website
 date: 2022-03-02
+category: "cat2"
 ---
 
 With Eleventy you can gradually expand your website and its complexity level.
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diff --git a/src/blog/article3.md b/src/blog/article3.md
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 layout: article
 title: Why I chose Eleventy for my static website
 date: 2022-05-04
+category: "cat1"
 ---
 
 There are many different static site generators out there, but after having used middleman for such a long time, it just made sense to switch to Eleventy. I needed something simple that gave lots of control over how I build my website.
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