Updates Readme

README.md

@@ -2,6 +2,8 @@
 
 ## Recipe for lecturer: generate a tarball with the icon model code for distribution to students
 
+Work with VSC account `avoigt_teach`.
+
 Get model code, use branch climmodlab_s2023:
 
 ```
@@ -18,6 +20,12 @@ This leads to the file `icon-2.6.0.tar.bz2`, which can be distributed to the stu
 
 ## Recipe for students: how to get, configure and compile ICON on VSC4
 
+Reserve a node for interactive use, do not work on the login nodes. See [VSC Wiki](https://docs.vsc.ac.at/running_jobs/interactive_jobs/).
+
+```
+interactivejobs -N 1 skylake_0096 --qos skylake_0096 --exclusive -t 2:00:00
+```
+
 Get and untar the tarball and enter the model code directory:
 
 ```