Better instructions for Meteor

- Where have to create custom.semantic.json
- create it with meteor stopped so semantic-ui will be generated

Author: hacknlove

server/documents/introduction/integrations.html.eco

@@ -71,6 +71,10 @@ type        : 'Introduction'
   </div>
   <div class="no example">
     <h4 class="ui header">Create a custom.semantic.json file</h4>
+    <p>With meteor stopped:</>
+    <div class="code" data-type="bash">
+      touch client/lib/semantic-ui/custom.semantic.json
+    </div>
     <p><code>custom.semantic.json</code> is a special file used to determine which themes and components to include in your project's build.</p>
     <p>To remove a component from the pipeline, simply set the boolean value to <code>false</code></p>
     <div class="code" data-type="json">