allow NerdTree to show hidden files

nvim/init.vim

@@ -42,6 +42,9 @@ let g:NERDTreeWinPos = "right"
 "Adjust NerdTree size
 let g:NERDTreeWinSize=28
 
+"Show hidden files in NERDTree
+let NERDTreeShowHidden=1
+
 " Exit Vim if NERDTree is the only window remaining in the only tab.
 autocmd BufEnter * if tabpagenr('$') == 1 && winnr('$') == 1 && exists('b:NERDTree') && b:NERDTree.isTabTree() | quit | endif
 
@@ -164,8 +167,9 @@ set mouse=a
 set autoindent
 set smarttab
 set cindent
-set tabstop=2
-set shiftwidth=2
+set tabstop=8
+set softtabstop=0
+set shiftwidth=4
 " always uses spaces instead of tab characters
 set expandtab