docs: update example posts

src/content/posts/guide/index.md

@@ -0,0 +1,51 @@
+---
+title: Simple Guides for Fuwari
+published: 2023-09-01
+description: "How to use this blog template."
+image: "./cover.jpeg"
+tags: ["Fuwari", "Blogging", "Customization"]
+category: Guides
+draft: false
+---
+
+> Cover image source: [Source]("https://image.civitai.com/xG1nkqKTMzGDvpLrqFT7WA/208fc754-890d-4adb-9753-2c963332675d/width=2048/01651-1456859105-(colour_1.5),girl,_Blue,yellow,green,cyan,purple,red,pink,_best,8k,UHD,masterpiece,male%20focus,%201boy,gloves,%20ponytail,%20long%20hair,.jpeg")
+
+This blog template is built with [Astro](https://astro.build/). For the things that are not mentioned in this guide, you may find the answers in the [Astro Docs](https://docs.astro.build/).
+
+## Front-matter of Posts
+
+```yaml
+---
+title: My First Blog Post
+published: 2023-09-09
+description: This is the first post of my new Astro blog.
+image: ./cover.jpg
+tags: [Foo, Bar]
+category: Front-end
+draft: false
+---
+```
+
+| Attribute     | Description                                                                                                                                                                                                 |
+|---------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
+| `title`       | The title of the post.                                                                                                                                                                                      |
+| `published`   | The date the post was published.                                                                                                                                                                            |
+| `description` | A short description of the post. Displayed on index page.                                                                                                                                                   |
+| `image`       | The cover image path of the post.<br/>1. Start with `http://` or `https://`: Use web image<br/>2. Start with `/`: For image in `public` dir<br/>3. With none of the prefixes: Relative to the markdown file |
+| `tags`        | The tags of the post.                                                                                                                                                                                       |
+| `category`    | The category of the post.                                                                                                                                                                                   |
+| `draft`        | If this post is still a draft, which won't be displayed.                                                                                                                                                    |
+
+## Where to Place the Post Files
+
+
+
+Your post files should be placed in `src/content/posts/` directory. You can also create sub-directories to better organize your posts and assets.
+
+```
+src/content/posts/
+├── post-1.md
+└── post-2/
+    ├── cover.png
+    └── index.md
+```