Documentation: update installation for using python 3.11.9

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@roscar @schmidtp

docs/development/installation.md

@@ -29,7 +29,7 @@ to manage different versions of python. This can be activated with
 A quick setup would be:
 
 1.  `source /gpfs/exfel/sw/calsoft/.pyenv/bin/activate`
-2.  `git clone ssh://git@git.xfel.eu:10022/detectors/pycalibration.git && cd pycalibration` -
+2.  `git clone --branch 3.14.4 ssh://git@git.xfel.eu:10022/detectors/pycalibration.git && cd pycalibration` -
     clone the offline calibration package from EuXFEL GitLab
 3.  `pyenv shell 3.8.18` - load required version of python
 4.  `python3 -m venv .venv` - create the virtual environment
@@ -43,6 +43,7 @@ Copy/paste script:
 ```bash
 source /gpfs/exfel/sw/calsoft/.pyenv/bin/activate
 git clone ssh://git@git.xfel.eu:10022/detectors/pycalibration.git
+git checkout 3.14.4  # Use this version for compatibility with Python 3.8.18
 cd pycalibration
 pyenv shell 3.8.18
 python3 -m venv .venv