[Docs] Fixes component description in index.html file

Author: froschdesign

doc/book/index.html

@@ -3,7 +3,7 @@
         <h1>zend-view</h1>
 
         <p>
-            Create cryptographically secure pseudo-random numbers, and manage big integers.
+            Zend\View provides the "View" layer of Zend Framework's MVC system.
         </p>
 
         <pre><code class="language-bash">$ composer require zendframework/zend-view</code></pre>