Put p5.strands tutorial in 2.0 category

Author: davepagurek

src/content/tutorials/config.ts

@@ -8,7 +8,7 @@ export const categories = [
   "web-design",
   "accessibility",
   "criticalAI",
-  "p5-strands",
+  // "p5-strands",
   "webgl",
   "advanced",
 ] as const;

src/content/tutorials/en/intro-to-p5-strands.mdx

@@ -1,7 +1,7 @@
 ---
 title: "p5.strands: Introduction to Shaders"
 description: An introduction to shaders using p5.strands
-category: p5-strands
+category: "2.0"
 categoryIndex: 0
 featuredImage: ../images/featured/intro-to-p5-strands.png
 featuredImageAlt: An abstract, cosmic scene with particles