Added timestamp notation to dataset card

README.md

@@ -56,7 +56,8 @@ domains and content pages that contain innapropriate content which may be harmfu
 
 <!-- This section describes the data collection and processing process such as data selection criteria, filtering and normalization methods, tools and libraries used, etc. -->
 The process of collection, processing and use is detailed in our team's paper. We collect data through our proposed CrediBench pipeline (available at our repository), 
-which builds a month's worth of data by pulling from Common Crawl, builds the graph from it and processes it to discard isolated and low-degree nodes.
+which builds a month's worth of data by pulling from Common Crawl, builds the graph from it and processes it to discard isolated and low-degree nodes. 
+Each edge has a timestamp, given as the date of the first day of week of the crawl, in format YYYYMMDD.
 
 
 ## Citation