Added the Chef logo for the main page

Added the chef logo to images/
Removed Cloud Foundry per docaedo's suggestion.

Change-Id: I44c7e2ae0227b38e5d18880a4f51a51e7dba4086
Depends-On: I9ac4192b0e7d2dbd886fe2ebf321b2d32696c5e5

openstack_catalog/web/index.html

@@ -104,10 +104,10 @@
             </div>
           </div>
           <div class="col-md-2 col-sm-6">
-            <div class="inner murano">
-              <a href="#tab=murano-apps&asset=Cloud Foundry">
-              <img src="static/images/logo-cloudfoundry.png">
-              <p>Cloud Foundry</p></a>
+            <div class="inner glance">
+              <a href="#tab=glance-apps&asset=Chef">
+              <img src="static/images/Chef-124x90-logo.png">
+              <p>Chef</p></a>
             </div>
           </div>
           <div class="col-md-2 col-sm-6">