more accurate intro

git-svn-id: http://svn.macosforge.org/repository/ruby/MacRubyWebsite/trunk@3991 23306eb0-4c56-4727-a40e-e92c0eb68959

content/index.txt

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-<p class="callout"><strong>MacRuby</strong> is a version of Ruby 1.9, ported to run directly on top of Mac OS X core technologies such as the Objective-C common runtime and garbage collector, the CoreFoundation framework and the LLVM compiler infrastructure. It is the goal of MacRuby to enable the creation of full-fledged Mac OS X applications which do not sacrifice performance in order to enjoy the benefits of using Ruby. <a href="/documentation/overview.html"><i>Read more...</i></a></p>
+<p class="callout"><strong>MacRuby</strong> is an implementation of Ruby 1.9 directly on top of Mac OS X core technologies such as the Objective-C runtime and garbage collector, the Foundation framework and the LLVM compiler infrastructure. It is the goal of MacRuby to enable the creation of full-fledged Mac OS X applications which do not sacrifice performance in order to enjoy the benefits of using Ruby. <a href="/documentation/overview.html"><i>Read more...</i></a></p>
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 <h2>Why MacRuby?</h2>
 <p>MacRuby began as an attempt to work around many problems inherent in RubyCocoa. In the course of solving these problems, MacRuby has also solved numerous problems in the original implementation of Ruby. Consequently, there are a number of reasons (e.g. convenience, efficiency, flexibility, performance) why one might wish to use MacRuby for new (and ongoing) Ruby applications... <a href="/documentation/why-macruby.html"><br><i>Read more...</i></a></p>
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