Create post-5.md

A new blog post is appended

Author: mTixier

tutorial/src/pages/posts/post-5.md

@@ -0,0 +1,12 @@
+---
+layout: ../../layouts/MDpostLayout.astro
+title: My Fifth Blog Post
+author: Astro Learner
+description: "I can add blog post from GitHub!"
+image:
+    url: "https://docs.astro.build/assets/arc.webp"
+    alt: "The Astro logo on a dark background with a purple gradient arc."
+pubDate: 2026-04-17
+tags: ["astro", "blogging", "learning in public", "successes"]
+---
+I am just checking if I can create a blog Post directly from GitHub.