/usr/share/cp2k/README is in cp2k-data 5.1-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 | # The POTENTIAL file has been created by
cat GTH_POTENTIALS HF_POTENTIALS NLCC_POTENTIALS ALL_POTENTIALS >POTENTIAL
|