Consider updating documentation regarding securing editors (docs/setup.md)

[31j]

In the case of the commands provided for neovim, they only should work if the user is using a init.vim file instead of an init.lua file

autocmd BufNewFile,BufRead /dev/shm/gopass* setlocal noswapfile nobackup noundofile shada=

would be (unless I messed something up)

vim.cmd[[autocmd BufNewFile,BufRead /dev/shm/gopass* setlocal noswapfile nobackup noundofile shada=]]

There may also be a better way than doing it this way but I just though I'd mention!