Update README.md

Author: hartig

README.md

@@ -23,6 +23,6 @@ HeFQUIN is a query federation engine for heterogeneous federations of graph data
 * Sijin Cheng and Olaf Hartig: **[FedQPL: A Language for Logical Query Plans over Heterogeneous Federations of RDF Data Sources](https://olafhartig.de/files/ChengHartig_FedQPL_iiWAS2020_Extended.pdf)**. In _Proceedings of the 22nd International Conference on Information Integration and Web-based Applications & Services (iiWAS)_, 2020.
 * Sijin Cheng and Olaf Hartig: **[Source Selection for SPARQL Endpoints: Fit for Heterogeneous Federations of RDF Data Sources?](https://olafhartig.de/files/ChengHartig_QuWeDa2022.pdf)**. In _Proceedings of the 6th Workshop on Storing, Querying and Benchmarking Knowledge Graphs (QuWeDa)_, 2022.
 * Sijin Cheng and Olaf Hartig: **[A Cost Model to Optimize Queries over Heterogeneous Federations of RDF Data Sources](https://olafhartig.de/files/ChengHartig_CostModel_DMKG2023.pdf)**. In _Proceedings of the 1st International Workshop on Data Management for Knowledge Graphs (DMKG)_, 2023.
-  * repo related to the experiments in this paper: [HeFQUIN-VocabMappingsExperiments](https://github.com/LiUSemWeb/HeFQUIN-DMKG2023-Experiments)
+  * repo related to the experiments in this paper: [LiUSemWeb/HeFQUIN-DMKG2023-Experiments](https://github.com/LiUSemWeb/HeFQUIN-DMKG2023-Experiments)
 * Sijin Cheng, Sebastian Ferrada, and Olaf Hartig: **[Considering Vocabulary Mappings in Query Plans for Federations of RDF Data Sources](https://olafhartig.de/files/ChengEtAL_VocabMappings_CoopIS2023.pdf)**. In _Proceedings of the 29th International Conference on Cooperative Information Systems (CoopIS)_, 2023.
   * repo related to the experiments in this paper: [LiUSemWeb/HeFQUIN-VocabMappingsExperiments](https://github.com/LiUSemWeb/HeFQUIN-VocabMappingsExperiments)