Add config for vim/nvim

.exrc

@@ -0,0 +1,15 @@
+"
+" Add this into your .vimrc, to allow vim handle this file.
+"
+" set exrc
+" set secure " even after this this is kind of dangerous
+"
+
+set tabstop=4
+set softtabstop=4
+set shiftwidth=4
+set noexpandtab
+
+" for detectindent plugin
+let detectindent_preferred_indent=4
+let g:detectindent_preferred_expandtab=0