Update getting_started.md

doc.zih.tu-dresden.de/docs/quickstart/getting_started.md

@@ -67,6 +67,13 @@ command line knowledge is required
 
 Next, the mentioned access methods are described step by step.
 
+??? info "VPN connection"
+
+    The ZIH
+     [FAQ and service catalog page](https://tu-dresden.de/zih/dienste/service-katalog/ arbeitsumgebung/zugang_datennetz/vpn)
+      provides information about how to set up the VPN connection
+       and solutions for most common issues.
+
 ### JupyterHub
 
 1. Access JupyterHub at