added compatibility note to readme

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Javan Makhmali 2011-06-19 14:19:55 -04:00
parent 7ca2d87823
commit 8515ffb528

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@ -136,6 +136,8 @@ It's a little bit dated now, but remains a good introduction.
[![Build Status](http://travis-ci.org/javan/whenever.png)](http://travis-ci.org/javan/whenever)
Compatible with Ruby 1.8.7-1.9.2, JRuby, and Rubinius.
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Copyright (c) 2011 Javan Makhmali