Fixes a typo.

Author: caseywebdev

index.html

@@ -164,7 +164,7 @@ <h2 id="installation">Installation</h2>
       <a href="http://github.com/sstephenson/ruby-yui-compressor">ruby-yui-compressor</a>,
       <a href="http://github.com/documentcloud/closure-compiler">closure-compiler</a> or
       <a href="https://github.com/lautis/uglifier">uglifier</a>
-      gems installed, downloading make take a minute &mdash; the jar files together
+      gems installed, downloading may take a minute &mdash; the jar files together
       weigh in at 5 megabytes.</i>
     </p>