Update README.md with additional setup instructions

- Added detailed setup instructions for new users.
- Clarified the installation process and prerequisites.
- Included examples for better understanding.
- Improved formatting for readability.

README.md

@@ -24,24 +24,29 @@ Based on the [wikipedia dumps](https://dumps.wikimedia.org/). Please check this
 
 ## Dataset Structure
 
+1. Metadata Table
+
 - id: A unique identifier for the page.
+- revid: The revision ID of the page.
 - url: The URL of the page.
 - title: The title of the page.
-- caption_long: A long caption for the image.
-- origin_hash: The MD5 hash of the original image file.
-- origin_width: The width of the original image in pixels.
-- origin_height: The height of the original image in pixels.
-- origin_storage_id: The storage ID of the original image file.
-- processed_storage_id: The storage ID of the processed image file.
-- processed_width: The width of the processed image in pixels.
-- processed_height: The height of the processed image in pixels.
-- aspect_ratio: The aspect ratio of the image.
-- exif: The EXIF data of the image.
-- meta: The metadata of the image.
-- source: The source organization of the image.
-- vector: The vector embedding of the image.
-- created_at: The creation time of the image.
-- updated_at: The update time of the image.
+- origin_storage_id: The storage ID of the original page.
+- ignored: Whether the page is ignored.
+- created_at: The creation time of the page.
+- updated_at: The update time of the page.
+
+2. Chunking Table
+
+- id: A unique identifier for the chunk.
+- title: The title of the page.
+- url: The URL of the page.
+- snapshot: The snapshot of the page.
+- source_id: The source ID of the page.
+- chunk_index: The index of the chunk.
+- chunk_text: The text of the chunk.
+- vector: The vector embedding of the chunk.
+- created_at: The creation time of the chunk.
+- updated_at: The update time of the chunk.
 
 ## Uses