Install libboost-doc by entering the following commands in the terminal:
sudo apt update sudo apt install libboost-doc
Description:
Boost.org libraries documentation placeholder (default version)
This package originally provided documentation, but has since fallen into disrepair and presently provides no documentation. Please use documentation at www.boost.org. . This package is a dependency package, which depends on Debian's default Boost version (currently 1.65).
Homepage: http://www.boost.org/libs/
Version: 1.65.1.0ubuntu1
Section: universe/doc