feat(blog): update blog post

Author: Hexi1997

apps/blog/posts/_index.json

@@ -2,22 +2,22 @@
   "count": 3,
   "posts": [
     {
-      "slug": "markdown-syntax-showcase",
-      "title": "Markdown Syntax Showcase",
+      "slug": "the-story-behind-blogit-why-i-built-a",
+      "title": "The Story Behind Blogit: Why I Built a Git-Powered, Local-First Blogging System",
       "date": "2026-03-06",
-      "pinned": false,
+      "pinned": true,
       "tags": [
-        "Blogit",
-        "Markdown Preview"
+        "Blogit"
       ]
     },
     {
-      "slug": "the-story-behind-blogit-why-i-built-a",
-      "title": "The Story Behind Blogit: Why I Built a Git-Powered, Local-First Blogging System",
+      "slug": "markdown-syntax-showcase",
+      "title": "Markdown Syntax Showcase",
       "date": "2026-03-06",
       "pinned": false,
       "tags": [
-        "Blogit"
+        "Blogit",
+        "Markdown Preview"
       ]
     },
     {

apps/blog/posts/the-story-behind-blogit-why-i-built-a/index.md

@@ -1,6 +1,7 @@
 ---
 title: 'The Story Behind Blogit: Why I Built a Git-Powered, Local-First Blogging System'
 date: '2026-03-06'
+pinned: true
 tags:
   - 'Blogit'
 ---