Add link to SAP internal Hugging Face documentation

README.md

@@ -23,3 +23,4 @@ To facilitate a nice, friendly, and open environment for all, check out [our cod
 - [SAP Business AI](https://www.sap.com/products/artificial-intelligence.html)
 - [Open Source @ SAP](https://opensource.sap.com)
 - [GitHub](https://github.com/SAP)
+- _SAP Employees only_: [(Internal) Hugging Face @ SAP](https://wiki.one.int.sap/wiki/x/BTYkTgE)