List whitespace characters.

init.vim

@@ -8,7 +8,6 @@ Plug 'vim-airline/vim-airline'
 Plug 'vim-airline/vim-airline-themes'
 Plug 'scrooloose/nerdcommenter'
 Plug 'javier-lopez/sprunge.vim'
-Plug 'vim-scripts/Trailer-Trash'
 Plug 'vim-scripts/bad-whitespace'
 Plug 'junegunn/fzf', { 'do': { -> fzf#install() } }
 Plug 'junegunn/fzf.vim'
@@ -31,8 +30,8 @@ filetype plugin on
 " indentation
 set tabstop=4                " tabs only count for 4 spaces
 set shiftwidth=4             " when indenting use 4 spaces
-set noexpandtab              " use tab characters
-set autoindent
+set expandtab                " don't use tab characters
+"set autoindent
 
 " view
 set number
@@ -42,7 +41,8 @@ set hlsearch                 " highlight found matches
 set incsearch nohlsearch     " turn off hightlight after search
 set wrap
 set linebreak
-set nolist                   " disable line break on wrap
+set list                     " disable line break on wrap
+set lcs=tab:»-,trail:·,leadmultispace:·,nbsp:·
 
 " folding
 set foldmethod=syntax