Merge pull request #368 from alphagov/fix-inline-code

Add missing code classes

app/views/guide_alpha_beta.html

@@ -56,7 +56,7 @@ <h3 class="heading-medium" id="creating-phase-banners">Creating alpha and beta b
   </p>
 
   <p class="text">
-    If you’ve previously used <code>phase-banner-alpha</code> or <code>phase-banner-beta</code> classes in your markup you should change them to <code>phase-banner</code>.
+    If you’ve previously used <code class="code">phase-banner-alpha</code> or <code class="code">phase-banner-beta</code> classes in your markup you should change them to <code class="code">phase-banner</code>.
   </p>
 
   <p>