Update emscripten documentation link

index.html

@@ -285,7 +285,7 @@ <h2 id="build">Build Documentation <a href="#build">[#]</a></h2>
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-              Depending on your system may need to also get the SDK to make sure Emscripten will work.  The have <a href="https://github.com/kripken/emscripten/wiki/Tutorial">documentation on their site</a> about getting this to work.
+              Depending on your system may need to also get the SDK to make sure Emscripten will work.  The have <a href="http://kripken.github.io/emscripten-site/docs/getting_started/Tutorial.html">documentation on their site</a> about getting this to work.
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