Added comments to everything in vimrc and added paste mode

vimrc

@@ -199,6 +199,10 @@ hi Cursor guibg=red
 " Use same color behind concealed unicode characters
 hi clear Conceal
 
+" Set paste mode and use system clipboard
+set paste
+set clipboard=unnamed
+
 " Don't blink normal mode cursor
 set guicursor=n-v-c:block-Cursor
 set guicursor+=n-v-c:blinkon0
@@ -235,6 +239,7 @@ augroup sourcing
   autocmd bufwritepost .vimrc source $MYVIMRC
 augroup END
 
+" Map Ctrl-S to save
 noremap <silent> <C-S> :update<CR>
 vnoremap <silent> <C-S> <C-C>:update<CR>
 inoremap <silent> <C-S> <C-O>:update<CR>