Fixed typo

Author: zemanel

resources/public/tutorial/page9.html

@@ -12,5 +12,5 @@
 </p>
 
 <p>
-   If you want, you can create a named functions without using <code>defn</code>: type <code class="expr">(def square (fn [x] (* x x)))</code> to continue.
+   If you want, you can create a named function without using <code>defn</code>: type <code class="expr">(def square (fn [x] (* x x)))</code> to continue.
 </p>