vim: Enable &autoread + autocmd for regular check

.config/vim/vimrc.d/30-settings.vim

@@ -66,3 +66,8 @@ set scrolloff=15
 set mouse=a
 " Disable pesky swap file warnings
 set shortmess+=A
+" Automatically update file that was modified outside of vim.
+" Beware that this updates only on certain events and thus works different then
+" probably expected. See corresponding autocommand or:
+" https://vi.stackexchange.com/questions/2702
+set autoread

.config/vim/vimrc.d/80-autocommands.vim

@@ -53,3 +53,9 @@ else
 		autocmd VimLeave * silent !echo -ne "\e[5 q"
 	endif
 endif
+
+" Read file changes when cursor is not moved for &updatetime ms and then move
+" cursor to restart the timer
+if (exists('+autoread') && &autoread)
+	autocmd CursorHold * checktime | call feedkeys('hl')
+endif