Update README.md

README.md

@@ -67,14 +67,27 @@ By providing a standardized dataset of global legal texts, we aim to accelerate
 
 ## Dataset Structure
 
-The dataset is organized with the following columns:
-
-- `book`: The name or code of the law book (e.g., "Civil Code", "Penal Code")
-- `document`: The full text content of the legal document
-- `timestamp`: The timestamp of when the law was enacted or last updated
-- `id`: A identifier for each document
-- `hash`: A SHA-256 hash of the `document` for verification purposes
-
+# Dataset Structure
+
+The dataset contains the following columns:
+
+1. **jurisdiction**: Capitalized ISO 3166-1 alpha-2 code representing the country or jurisdiction. This column is useful when stacking data from different jurisdictions.
+2. **language**: Non-capitalized ISO 639-1 code representing the language of the document. This is particularly useful for multilingual jurisdictions.
+3. **text**: The main textual content of the document.
+4. **html**: An HTML-structured version of the text. This may include additional structure such as XML (Akoma Ntoso).
+5. **title_main**: The primary title of the document. This replaces the 'book' column, as many modern laws are not structured or referred to as 'books'.
+6. **title_alternative**: A list of official and non-official (nickname) titles for the document.
+7. **id_sub**: Identifier for lower granularity items within the document, such as specific article numbers. This replaces the 'id' column.
+8. **id_main**: Document identifier for the main document, such as the European Legislation Identifier (ELI).
+9. **url_sourcepage**: The source URL of the web page where the document is published.
+10. **url_sourcefile**: The source URL of the document file (e.g., PDF file).
+11. **date_publication**: The date when the document was published.
+12. **date_signature**: The date when the document was signed.
+13. **uuid**: A universally unique identifier for each row in the dataset.
+14. **text_hash**: A SHA-256 hash of the 'text' column, useful for verifying data integrity.
+15. **formatted_date**: The publication date formatted as 'YYYY-MM-DD HH:MM:SS', derived from the 'date_publication' column.
+
+This structure ensures comprehensive metadata for each legal document, facilitating easier data management, cross-referencing, and analysis across different jurisdictions and languages.
 Easy-to-use script for hashing the `document`:
 
 ```python