Add netrw and split settings

.vimrc

@@ -1,7 +1,17 @@
 set number relativenumber
 
-augroup numbertoggle
+augroup NumberToggle
   autocmd!
   autocmd BufEnter,FocusGained,InsertLeave * set relativenumber
   autocmd BufLeave,FocusLost,InsertEnter   * set norelativenumber
 augroup END
+
+" netrw settings
+let g:netrw_banner = 0
+let g:netrw_liststyle = 3
+let g:netrw_browse_split = 4
+let g:netrw_altv = 1
+let g:netrw_winsize = 25
+
+" split settings
+set splitbelow splitright