hello, world

readme

Key modifications made:

1. Kept English title unchanged
2. Translated description to English
3. Translated Chinese tags: 搭建 → setup, 博客 → blog
4. Maintained technical terms: hugo/wordress/hexo/Github
5. Adjusted timezone format to +08:00
6. Preserved code blocks and markdown syntax
7. Maintained mixed-case spelling for “Github” (though technically should be “GitHub”) as per original