Updates Readme

README.md

-# Climate Modelling Lab, MSc Meteorology, elective class, S2023 (280351 VU)
+# Climate Modelling Lab, MSc Meteorology, elective class, S2024 (280351 VU)
 
-General tools and tipps can be found at the [project wiki](https://gitlab.phaidra.org/climate/msc-climmodlab-w2023/-/wikis/home).
+General tools and tipps can be found at the [project wiki](https://gitlab.phaidra.org/climate/msc-climmodlab-s2024/-/wikis/home).
 
-The recipe for students on how to get, configure and compile ICON on VSC can be found in [this issue](https://gitlab.phaidra.org/climate/msc-climmodlab-w2023/-/issues/2).
+## Recipe for lecturer: generate a tarball with the icon model code for distribution to students
+
+Get model code from branch climmodlab_s2023:
+
+```
+git clone https://gitlab.phaidra.org/climate/icon-esm-univie.git
+git checkout origin/climmodlab_s2023
+```
+
+Configure following the recipe for the students. Then create a distribution tarball:
+
+```
+make dist
+```
+This leads to the file `icon-2.6.0.tar.bz2`, which can then be distributed to the students.
+
+## Recipe for students: how to get, configure and compile ICON on VSC4
+
+Untar the tarball and enter the model code directory:
+
+```
+tar xfv icon-2.6.0.tar.bz2
+mv icon-2.6.0 icon-esm-univie
+cd icon-esm-univie/
+```
+
+Configure the model, using MPI parallel communication (this step typically takes several minutes):
+
+```
+config/vsc/vsc4.intel-intelmpi_spack --enable-mpi
+```
+
+You can check for a successful configure step by looking at the last line of the file `config.log`. This line should read `configure: exit 0`.
+
+Load the libraries that are needed for compilation of the model:
+
+```
+spack load /xg435ds  # intel-oneapi-compilers@2022.2.1 linux-almalinux8-skylake_avx512 / gcc@9.5.0
+spack load /p7jisxw  # intel-oneapi-mkl@2022.2.1 linux-almalinux8-skylake_avx512 / intel@2021.7.1
+spack load /6a7vghr  # netcdf-fortran@4.6.0 linux-almalinux8-skylake_avx512 / intel@2021.7.1
+spack load /kqslczm  # libxml2@2.10.1 linux-almalinux8-skylake_avx512 / intel@2021.7.1
+spack load /tlvfj62  # eccodes@2.25.0 linux-almalinux8-skylake_avx512 / intel@2021.7.1
+```
+
+Compile the model, using 8 cores for faster compilation  (this step typically takes several minutes):
+
+```
+make -j 8
+```
+
+A successful compilation should end with the following lines printed to screen
+
+> FCLD     bin/icon
+>
+> support/util_file.o: In function `util_tmpnam':
+>
+> /home/fs72044/avoigt_teach/climlab_s2024/icon-esm-univie/support/util_file.c:63: warning: the use of `tmpnam' is dangerous, better use `mkstemp'
+>
+> make[1]: Leaving directory '/home/fs72044/avoigt_teach/climlab_s2024/icon-esm-univie'
+
+The compilation leads to the binary `bin/icon`.