Escape "*nix".

Author: johntyree

README.markdown

@@ -9,7 +9,7 @@
 
 spf13-vim is a distribution of vim plugins and resources for Vim, Gvim and [MacVim].
 
-It is a good starting point for anyone intending to use VIM for development running equally well on Windows, Linux, *nix and Mac.
+It is a good starting point for anyone intending to use VIM for development running equally well on Windows, Linux, \*nix and Mac.
 
 The distribution is completely customisable using a `~/.vimrc.local` and `~/.vimrc.bundles.local` Vim RC files.