This PR updates the installation guide for Linux Mint. The previous instructions give an error for libpng16-dev
Package libpng16-dev is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
However the following packages replace it:
libpng-dev:i386 libpng-dev
This PR updates the installation guide for Linux Mint. The previous instructions give an error for
libpng16-dev