Added a container div class under marketing

This is to address point codeschool-projects#10

    --- Lionel Saliou, Ph.D

index.html

@@ -78,25 +78,26 @@ <h1>Get in touch</h1>
       </div>
 
       <div class="row marketing">
-        <div class="col-md-4">
-          <i class='glyphicon glyphicon-qrcode'></i>
-          <h2>I wish I knew HTML and CSS</h2>
-          <p>These technologies have changed tremendously since I last used them.</p>
-        </div>
+        <div class="container">
+          <div class="col-md-4">
+            <i class='glyphicon glyphicon-qrcode'></i>
+            <h2>I wish I knew HTML and CSS</h2>
+            <p>These technologies have changed tremendously since I last used them.</p>
+          </div>
 
-        <div class="col-md-4">
-          <i class='glyphicon glyphicon-flash'></i>
-          <h2>Javascript</h2>
-          <p>I agree to learn the basics, however the future of this technology appears to be TypeScript in my opinion. </p>
-          <p>Clear and evident strong typing keeps your average developer saner! </p>
-        </div>
+          <div class="col-md-4">
+            <i class='glyphicon glyphicon-flash'></i>
+            <h2>Javascript</h2>
+            <p>I agree to learn the basics, however the future of this technology appears to be TypeScript in my opinion. </p>
+            <p>Clear and evident strong typing keeps your average developer saner! </p>
+          </div>
 
-        <div class="col-md-4">
-          <i class='glyphicon glyphicon-hdd'></i>
-          <h2>RESTful API</h2>
-          <p>The final true implementation of a Service Oriented Architecture?</p>
+          <div class="col-md-4">
+            <i class='glyphicon glyphicon-hdd'></i>
+            <h2>RESTful API</h2>
+            <p>The final true implementation of a Service Oriented Architecture?</p>
+          </div>
         </div>
-
       </div> <!-- row -->
 
     </div>