Clarify the requirement for the index.html file location in upload do…

…cumentation

docs/deweb/cli/upload.mdx

@@ -22,7 +22,7 @@ Before you start, make sure you have the following:
 DeWeb only supports websites that are pre-built. This means the files are generated in advance and
 ready to serve directly from storage. Your website bundle must include:
 
-- **An `index.html` file** as the entry point.
+- **An `index.html` file** at the root of the directory, which serves as the entry point for your website.
 - Any supporting files (e.g., CSS, JavaScript, images) within the same directory.
 
 This format allows the website to be served directly from the blockchain without the need for server-side processing