Install cpl-plugin-fors-doc by entering the following commands in the terminal:
sudo apt update sudo apt install cpl-plugin-fors-doc
Description:
ESO data reduction pipeline documentation for FORS
This package contains the HTML documentation and manpages for the data reduction pipeline for the FORS instrument of the Very Large Telescope (VLT) from the European Southern Observatory (ESO).
Homepage: http://www.eso.org/sci/software/pipelines/fors
Version: 5.3.23+dfsg-1build1
Section: universe/doc