added note to readme about Homebrew package availability

README.rst

@@ -122,6 +122,10 @@ For now gcarrier and I have packaged autojump for Arch Linux. It is available in
 Tanguy Ortolo packaged autojump for Debian testing/unstable. It will eventually reach Ubuntu. To install, type::
 
  apt-get install autojump
+ 
+Autojump is also available on the OSX Homebrew package manager::
+
+ brew install autojump
 
 I would be very interested by packages for other distros. If you think you can help me with the packaging, please contact me!