Ruby bindings: Add a TODO note to the SWIG bindings INSTALL file.

* subversion/bindings/swig/INSTALL: Add a Ruby section containing a TODO note.


git-svn-id: https://svn.apache.org/repos/asf/subversion/branches/ruby@853642 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/subversion/bindings/swig/INSTALL b/subversion/bindings/swig/INSTALL
index bcfa9a9..ce9ab11 100644
--- a/subversion/bindings/swig/INSTALL
+++ b/subversion/bindings/swig/INSTALL
@@ -12,6 +12,12 @@
   The Perl bindings are complete, with the exception of SVN::Wc, on which
   very little work has been done.
 
+* Ruby
+
+  The Ruby bindins are .....
+
+  ### Could someone who knows, fill in this section?
+
 * Java
 
   The SWIG-Java bindings are very incomplete, and are almost an abandoned