feat(docs): add example0 tutorials and update sidebar

docs: add example0-1 and example0-2 tutorial markdown files with images
chore: update sidebar and readme to include new example0 sections
style: fix formatting in index.html and README.md

docs/index.html

@@ -127,6 +127,8 @@
           'extra/extra5/extra5-what-is-rag-and-how-does-it-work-and-future.md',
           'extra/extra6/extra6-zeabur-what-is-it-and-how-to-deploy-web-applications.md',
           'extra/extra7/extra7-cli-ai-coding-tools-and-the-principles-of-test-driven-development.md',
+          'examples/example0/example0-1/vibe-coding-tools-snake-game-tutorial.md',
+          'examples/example0/example0-2/vibe-coding-tools-build-website-with-ai-coding-and-design-agents.md',
           'examples/example1/example1-how-to-build-a-wechat-miniprogram.md'
         ],
         placeholder: '🔍 搜索',
@@ -226,4 +228,4 @@
   <!-- 字数统计 -->
   <script src="https://cdn.jsdelivr.net/npm/docsify-count@latest/dist/countable.min.js" onerror="this.onerror=null;this.src='https://unpkg.com/docsify-count/dist/countable.js';"></script>
 </body>
-</html>
+</html>