.vimrc: F8 -> notes.txt

.vimrc

@@ -288,7 +288,7 @@ set nocompatible
   " F7 opens ~/.vimrc, F8 opens scratch buffer (both in existing tab if open,
   " new otherwise)
   map <F7> :tab drop ~/code/bpb-kit/.vimrc<CR>
-  map <F8> :tab drop ~/notes/scratch<CR>
+  map <F8> :tab drop ~/notes/notes.txt<CR>
 
   " F9 toggles search highlighting and some other noise
   map <F9> :set invhlsearch<CR>:set invcursorcolumn<CR>:set invcursorline<CR>