Merge pull request #104 from gosuda/feature/readme-quickstart

README: add quickstart

Author: lemon-mint

README.md

@@ -1,3 +1,29 @@
-# Website
+# Gosuda Website
 
-Home of the gosuda.org [go-import, blog]
+[![Website](https://img.shields.io/badge/visit-gosuda.org-blue?style=flat-square)](https://gosuda.org)
+
+This repository contains the source code for the Gosuda static website and blog. All content is written in Markdown and automatically processed through CI/CD for **translation and deployment**.
+
+## ✍️ Writing a new post
+
+### 1. **Create a Markdown file in `/root/blog/`**  
+   ```bash
+   blog/my-new-post.md
+   ```
+
+### 2. **Add frontmatter metadata (at the top of the file)**  
+   ```yaml
+   ---
+   author: <Your Name>
+   title: <Post Title>
+   ---
+   ```
+
+### 3. **Write your content in Markdown**
+
+### 4. **Commit, Push, and Open a Pull Request**
+   ```bash
+   git add blog/my-new-post.md
+   git commit -m "Add new blog post: my-new-post"
+   git push origin my-branch
+   ```