Update README.md

README.md

@@ -14,10 +14,13 @@ Document structuring plays a crucial role in various natural language processing
 It also helps readers to effectively navigate into a structured document with a large amount of textual data. 
 In the legal domain, document structuring is particularly important for creating inter- and intra-document links.
 
-This dataset contains documents segmented into lines. Each line contains layout information and its raw text, with an indication of whether it is a title
-The goal here is to predict whether a line is a title or not.
-It's worth noting that hierarchical level information for each line is not currently included but may be incorporated in future iterations.
+The dataset provides documents segmented into lines. 
+Each document was collected in HTML format or PDF format. 
+Then PDFs were converted to HTML with basic formatting tags like bold or italics.
+Each line includes layout information, raw text (HTML), and a label indicating whether it's a title.
+Common tasks using this data include predicting titles and reconstructing the Table of Contents (TOC) for each document.
 
+While information about the hierarchical structure of each line is not currently available, we plan to incorporate it in future releases.
 
 **Usage**