Update README.md (#3597)

- Fix the tree to reflect the actual example contents
- Remove RSS and Sitemap bullet points, since they aren't in the project

examples/blog/README.md

@@ -12,24 +12,41 @@ Features:
 
 - ✅ SEO-friendly setup with canonical URLs and OpenGraph data
 - ✅ Full Markdown support
-- ✅ RSS 2.0 generation
-- ✅ Sitemap.xml generation
 
 ## 🚀 Project Structure
 
 Inside of your Astro project, you'll see the following folders and files:
 
 ```
-/
-├── public/
-│   ├── robots.txt
-│   └── favicon.ico
-├── src/
-│   ├── components/
-│   │   └── Tour.astro
-│   └── pages/
-│       └── index.astro
-└── package.json
+├── README.md
+├── astro.config.mjs
+├── package.json
+├── public
+│   ├── assets
+│   │   └── blog
+│   │       └── introducing-astro.jpg
+│   ├── favicon.ico
+│   ├── social.jpg
+│   └── social.png
+├── sandbox.config.json
+├── src
+│   ├── components
+│   │   ├── Author.astro
+│   │   ├── BaseHead.astro
+│   │   ├── BlogHeader.astro
+│   │   ├── BlogPost.astro
+│   │   ├── BlogPostPreview.astro
+│   │   ├── Heading.astro
+│   │   └── Logo.astro
+│   ├── layouts
+│   │   └── BlogPost.astro
+│   ├── pages
+│   │   ├── index.astro
+│   │   └── posts
+│   │       └── index.md
+│   └── styles
+│       └── blog.css
+└── tsconfig.json
 ```
 
 Astro looks for `.astro` or `.md` files in the `src/pages/` directory. Each page is exposed as a route based on its file name.