VIM: Makes vim auto-add comment character

It will do this in insert mode when pushing <enter> or when in normal
mode when pushing o or O

nvim/.config/nvim/plugin/settings.vim

@@ -38,3 +38,8 @@ set linebreak
 " Sets tool for opening non-text files with gx
 " If in netrw, this is run with just x
 let g:netrw_browsex_viewer = "opout"
+
+" Automatically insert comment leader after hitting enter
+set formatoptions+=r
+" Automatically insert comment leader after hitting o or O
+set formatoptions+=o