Added additional installation instructions from VimClojure that are necessary to get the plugin to work.

James Webster · guns · commit 8762ea57a0fc · 2013-07-30T05:26:58.000-05:00
diff --git a/README.markdown b/README.markdown
@@ -125,6 +125,13 @@ you don't have a favorite method for installing plugins,
 [Pathogen](https://github.com/tpope/vim-pathogen) or
 [Vundle](https://github.com/gmarik/vundle) are recommended.
 
+Please make sure that the following options are set in your .vimrc:
+
+    syntax on
+    filetype plugin indent on
+
+Otherwise the filetype is not activated.
+
 Indent Options
 ==============
 
