feat: Add static file import system for docs (#3882)

# What does this PR do?

Add static file import system for docs

- Use `remark-code-import` plugin to embed code at build time
- Support importing Python code with syntax highlighting using
`raw-loader` + `ReactMarkdown`

One caveat is that currently when embedding markdown with code used the
syntax highlighting isn't behaving but I'll investigate that in a follow
up.

## Test Plan

Python Example:
<img width="1372" height="995" alt="Screenshot 2025-10-23 at 9 22 18 PM"
src="https://github.com/user-attachments/assets/656d2c78-4d9b-45a4-bd5e-3f8490352b85"
/>

Markdown example:
<img width="1496" height="1070" alt="Screenshot 2025-10-23 at 9 22
38 PM"
src="https://github.com/user-attachments/assets/6c0a07ec-ff7c-45aa-b05f-8c46acd4445c"
/>

---------

Signed-off-by: Francisco Javier Arceo <farceo@redhat.com>

docs/README.md

@@ -13,6 +13,42 @@ npm run serve
 ```
 You can open up the docs in your browser at http://localhost:3000
 
+## File Import System
+
+This documentation uses `remark-code-import` to import files directly from the repository, eliminating copy-paste maintenance. Files are automatically embedded during build time.
+
+### Importing Code Files
+
+To import Python code (or any code files) with syntax highlighting, use this syntax in `.mdx` files:
+
+```markdown
+```python file=./demo_script.py title="demo_script.py"
+```
+```
+
+This automatically imports the file content and displays it as a formatted code block with Python syntax highlighting.
+
+**Note:** Paths are relative to the current `.mdx` file location, not the repository root.
+
+### Importing Markdown Files as Content
+
+For importing and rendering markdown files (like CONTRIBUTING.md), use the raw-loader approach:
+
+```jsx
+import Contributing from '!!raw-loader!../../../CONTRIBUTING.md';
+import ReactMarkdown from 'react-markdown';
+
+<ReactMarkdown>{Contributing}</ReactMarkdown>
+```
+
+**Requirements:**
+- Install dependencies: `npm install --save-dev raw-loader react-markdown`
+
+**Path Resolution:**
+- For `remark-code-import`: Paths are relative to the current `.mdx` file location
+- For `raw-loader`: Paths are relative to the current `.mdx` file location
+- Use `../` to navigate up directories as needed
+
 ## Content
 
 Try out Llama Stack's capabilities through our detailed Jupyter notebooks: