fix: fix inconsistencies in technology section

- Fix category and permalink in technology posts
- Use 'categories' instead of 'category' in front matter
- Update permalinks to use /technology/ consistently
- Fix article paths in navigation tutorial

Author: Chad Chen

_config.yml

@@ -48,7 +48,7 @@ include:
 header_pages:
   - _pages/index.md
   - _pages/news.md
-  - _pages/tech.md
+  - _pages/technology.md
   - _pages/tutorials.md
   - _pages/about.md
 

_pages/tech.md renamed to _pages/technology.md

@@ -3,7 +3,7 @@ layout: page
 title: 技术分享
 nav_title: 技术
 nav_order: 2
-permalink: /tech/
+permalink: /technology/
 ---
 
 {% for post in site.categories.Technology %}

_posts/technology/2023-01-17-change-avatar-by-ai.md

@@ -2,12 +2,12 @@
 layout: post
 title:  "使用 AI 工具换新头像"
 date:   2023-01-17 14:36:05 +0800
-category: Technology
+categories: Technology
 tags:
   - AI
   - avatar
   - tools
-permalink: /tech/change-avatar-by-ai/
+permalink: /technology/change-avatar-by-ai/
 ---
 
 给自己定了一个小目标：每年要换一个社交头像。

_posts/technology/2023-01-31-download-ebooks-from-kindle.md

@@ -8,7 +8,7 @@ tags:
   - ePub
   - tools
   - tutorial
-permalink: /tech/download-ebooks-from-kindle/
+permalink: /technology/download-ebooks-from-kindle/
 ---
 
 由于 Kindle 宣布 2023 年 06 月 30 日停止在中国电子书店的运营<sup>[1]</sup>，我想将购买的一些电子书下载存档。

_posts/tutorials/2025-01-13-optimize-jekyll-navigation.md

@@ -20,7 +20,7 @@ your-site/
 ├── _pages/             # 存放页面文件
 │   ├── about.markdown
 │   ├── news.md
-│   ├── tech.md
+│   ├── technology.md
 │   └── tutorials.md
 ├── _posts/             # 按分类存放文章
 │   ├── news/
@@ -55,7 +55,7 @@ permalink: /url路径/   # 页面的永久链接
 header_pages:
   - _pages/news.md
   - index.md
-  - _pages/tech.md
+  - _pages/technology.md
   - _pages/tutorials.md
   - _pages/about.markdown
 ```
@@ -75,15 +75,15 @@ tags: [标签1, 标签2]    # 使用标签提供更细致的分类
 
 ### 2. 创建分类页面
 
-为每个分类创建独立的页面，例如 `_pages/tech.md`：
+为每个分类创建独立的页面，例如 `_pages/technology.md`：
 
 ```liquid
 ---
 layout: page
 title: Technology
 nav_title: Technology
 nav_order: 3
-permalink: /tech/
+permalink: /technology/
 ---
 
 {% raw %}{% for post in site.categories.Technology %}