Update README

Author: LukasPietzschmann

README.md

@@ -1,5 +1,14 @@
 # Slicing Coverage
 
+Track and report code coverage for your package. Compared to traditional approaches,
+Slicing Coverage aims to enhance the accuracy of coverage scores by calculating them
+based on the program slice resulting from the test’s assertion criteria. This way, we
+are able to account for code that's covered but no checked, thus providing a score
+that can reflect the tests quality more accurately. This package integrates with most
+of covr's functionality and should therefore be easily integrated into existing projects.
+
+To use this package, you also need the program slicer [flowr](https://github.com/flowr-analysis/flowr).
+
 ## Development
 To get ready for development, you can follow the steps below:
 1. Clone the repository: