Enable documentation cop in rubocop.yml
Fix a oh-my-zsh problem with variable exports

oh-my-zsh sets whatever kind of crap it likes, in this case it was the
$PAGER variable which was set to "less" (instead of the more preferable
"less -X"). In order to fix this, I moved the sourcing of mt personal
exports after the initialization of oh-my-zsh (inside .zshrc).