Add TH Köln course

fixes #10

README.md

@@ -162,6 +162,7 @@ The finished courses have been archived on Zenodo and are accessible via GitHub
 | ✅ | Winter semester 2023/2024 | [Information Retrieval](https://friedolin.uni-jena.de/qisserver/rds?state=verpublish&status=init&vmfile=no&moduleCall=webInfo&publishConfFile=webInfo&publishSubDir=veranstaltung&veranstaltung.veranstid=216141&noDBAction=y&init=y) | [Friedrich-Schiller-Universität Jena](https://jena.webis.de) | [🔗](https://tira-io.github.io/ir-lab-ws-23/) | [🔗](https://github.com/tira-io/ir-lab-ws-23) |
 | ⏳ | Summer semester 2024 | [Search Engines and Neural Information Retrieval](https://digicampus.uni-augsburg.de/dispatch.php/course/details/?sem_id=303dadfd5b91e90a321e1f992fa45bed) |[Augsburg University](https://annefried.github.io/)| [🔗](https://tira-io.github.io/ir-lab-sose-24/) | [🔗](https://github.com/tira-io/ir-lab-sose-24) |
 | ⏳ | Summer semester 2024 | [Advanced Information Retrieval](https://friedolin.uni-jena.de/qisserver/rds?state=verpublish&status=init&vmfile=no&publishid=224212&moduleCall=webInfo&publishConfFile=webInfo&publishSubDir=veranstaltung) |[Friedrich-Schiller-Universität Jena](https://jena.webis.de) | [🔗](https://github.com/tira-io/ir-lab-sose-24) | [🔗](https://tira-io.github.io/ir-lab-sose-24/) | [🔗](https://github.com/tira-io/ir-lab-sose-24) |
+| ⏳ | Summer semester 2024 | [Information Retrieval](https://ir.web.th-koeln.de/teaching) |[TH Köln](https://ir.web.th-koeln.de/people/philipp-schaer/) | [🔗](https://github.com/tira-io/ir-lab-sose-24) | [🔗](https://tira-io.github.io/ir-lab-sose-24/) | [🔗](https://github.com/tira-io/ir-lab-sose-24) |
 | ⏳ | Summer semester 2024 | [Information Retrieval](https://temir.org/teaching/information-retrieval-ss24/information-retrieval-ss24.html) |[Leipzig University](https://temir.org/teaching/information-retrieval-ss24/information-retrieval-ss24.html) | [🔗](https://tira-io.github.io/ir-lab-sose-24/) | [🔗](https://github.com/tira-io/ir-lab-sose-24) |
 | 🔜 | _soon_ | _**your** IR course_ | _[get in touch 💬](#contact)_ | 🔜 | 🔜 |