fix: links to updated replication packages in README

Previously, these links pointed to the README files of the replication packages, which made Gitlab download the READMEs instead of going to the subdirectory in the web browser.

Author: pmbittner

README.md

@@ -99,7 +99,7 @@ This paper gives an overview of DiffDetective, its design, features, use-cases,
 [![Paper](https://img.shields.io/badge/Paper-Read-purple)](https://dl.acm.org/doi/10.1145/3540250.3549108)
 [![Talk](https://img.shields.io/badge/Talk-Watch-purple)](https://www.youtube.com/watch?v=EnDx1AWxD24)
 [![Original Replication Package](https://img.shields.io/badge/Replication_Package-Original-blue)](https://github.com/VariantSync/DiffDetective/tree/esecfse22)
-[![Updated Replication Package](https://img.shields.io/badge/Replication_Package-Updated-blue)](replication/esecfse22/README.md)
+[![Updated Replication Package](https://img.shields.io/badge/Replication_Package-Updated-blue)](replication/esecfse22/)
 [![Artifact DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.7110095.svg)](https://doi.org/10.5281/zenodo.7110095)
 
 > P. M. Bittner, C.Tinnes, A. Schultheiß, S. Viegener, T. Kehrer, T. Thüm. _Classifying Edits to Variability in Source Code_. In Proceedings of the 30th ACM Joint European Software Engineering Conference and Symposium on the Foundations of Software Engineering (ESEC/FSE 2022), ACM, New York, NY, November 2022
@@ -120,7 +120,7 @@ The original replication package can be found on the [esecfse](https://github.co
 [![Preprint](https://img.shields.io/badge/Preprint-Read-purple)](https://github.com/SoftVarE-Group/Papers/raw/main/2023/2023-SPLC-Bittner.pdf)
 [![Paper](https://img.shields.io/badge/Paper-Read-purple)](https://dl.acm.org/doi/10.1145/3579027.3608985)
 [![Original Replication Package](https://img.shields.io/badge/Replication_Package-Original-blue)](https://github.com/VariantSync/DiffDetective/tree/splc23-views/replication/splc23-views)
-[![Updated Replication Package](https://img.shields.io/badge/Replication_Package-Updated-blue)](replication/splc23-views/README.md)
+[![Updated Replication Package](https://img.shields.io/badge/Replication_Package-Updated-blue)](replication/splc23-views/)
 [![Artifact DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.8027920.svg)](https://doi.org/10.5281/zenodo.8027920)
 
 > P. M. Bittner, A. Schultheiß, S. Greiner, B. Moosherr, S. Krieter, C. Tinnes, T. Kehrer, T. Thüm. _Views on Edits to Variational Software_. In Proceedings of the 27th ACM International Systems and Software Product Line Conference (SPLC 2023), ACM, New York, NY, August 2023