Make split fix for NERDTree explicit

doc/startify.txt

@@ -484,15 +484,16 @@ FAQ                                                               *startify-faq*
 
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-CtrlP opens a split in Startify!~
+CtrlP or NERDTree open a split in Startify!~
 
-Solution 1)
+Put this in your vimrc:
 >
-    let g:ctrlp_reuse_window = 'startify'
+    autocmd FileType startify setlocal buftype=
 <
-Solution 2)
+If you're using CtrlP without NERDTree, there is an even more elegant
+solution:
 >
-    autocmd FileType startify setlocal buftype=
+    let g:ctrlp_reuse_window = 'startify'
 <
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