add dataset and link to design_doc & slides

README.md

@@ -5,13 +5,13 @@ In this project, we use BERTopic to extract topic information from documents and
 
 Authors: Gatternig Elias, Müller Hanna, Palasser Georg
 
-[View Design Document](TODO)
+[View Design Document](./design-document.pdf)
 
-[View Presentation Slides](TODO)
+[View Presentation Slides](./slides.pdf)
 
 ## Dataset
 
-TODO: brief description; link to dataset
+We used the publicly available [CISI collection](https://ir.dcs.gla.ac.uk/resources/test_collections/cisi/) of the University of Glasgow, containing 1460 documents and 112 queries. It contains documents, queries and a "ground-truth" of query-document matchings.
 
 ## How to run