diff --git a/dot_config/exact_nvim/Readme.md b/dot_config/exact_nvim/Readme.md
index 8024d12..25d6ea8 100644
--- a/dot_config/exact_nvim/Readme.md
+++ b/dot_config/exact_nvim/Readme.md
@@ -43,6 +43,7 @@ Yuan Neovim 備忘
 
 * :Neotree float git_status git_base=main
 * :verbose map <C-,>
+* echo getchar()
 
 ## 資料夾結構