update README

README.md

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 ### Dataset Summary
 
-The ISAF Press Releases dataset contains data used as the basis for the research paper "A Knock on the Door: 22 Months of ISAF Press Releases". The dataset provides a comprehensive collection of press releases issued by the International Security Assistance Force (ISAF) in Afghanistan from December 1, 2009, to February 21, 2013. The press releases were collected, processed, and annotated to extract information about kill-capture missions carried out by ISAF during this period. The dataset offers valuable insights into the nature and extent of these operations, providing a historical record of ISAF's activities in Afghanistan.
+The ISAF Press Releases dataset contains data used as the basis for the research
+paper "A Knock on the Door: 22 Months of ISAF Press Releases". The dataset
+provides a comprehensive collection of press releases issued by the
+International Security Assistance Force (ISAF) in Afghanistan from December 1,
+2009, to February 21, 2013. The press releases were collected, processed, and
+annotated to extract information about kill-capture missions carried out by ISAF
+during this period. The dataset offers valuable insights into the nature and
+extent of these operations, providing a historical record of ISAF's activities
+in Afghanistan. It consists of 4822 press release reports, each labelled with 
+information about the event, including the date, location, target group, and
+the number of people killed or captured (as represented in the data). The
+dataset is provided as a single Parquet file without predefined splits.
 
 ### Supported Tasks and Leaderboards