Update index.html

Author: atmos

cinderella/index.html

@@ -8,7 +8,7 @@
 <h1>Cinderella for Mac OSX</h1>
 <hr/>
 
-<h2>Use <a href="https://github.com/boxen/boxen">boxen</a> instead of this project.</h2>
+<h2><strong>Use <a href="https://github.com/boxen/boxen">boxen</a> instead of this project.</strong></h2>
 
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