nnoremap <C-h> :set hlsearch!<CR>

ref: GitHub #1

Author: Masafumi Yokoyama

mapping.vim

@@ -2,6 +2,8 @@
 " https://gitter.im/vim-jp/reading-vimrc?at=5ac8d6065f188ccc153dde71
 nnoremap Y y$
 
+nnoremap <C-h> :set hlsearch!<CR>
+
 " <Up> <Down>の方が便利なので入れ替え
 " https://gitter.im/vim-jp/reading-vimrc?at=5ac8d6f801a2b40f382e9043
 "   <C-n> <C-p> は常に履歴を1つずつ遡ります