Add @kennyglenn's center-atom theme to the welcome landing page CodeByZach#69

Author: adamschwartz

docs/welcome/index.html

@@ -486,14 +486,18 @@ <h2>Themes</h2>
                             name: 'bounce',
                             title: 'Bounce',
                             author: 'adamschwartz'
+                        }, {
+                            name: 'loading-bar',
+                            title: 'Loading Bar',
+                            author: 'gavJackson'
                         }, {
                             name: 'center-circle',
                             title: 'Center Circle',
                             author: 'adamschwartz'
                         }, {
-                            name: 'loading-bar',
-                            title: 'Loading Bar',
-                            author: 'gavJackson'
+                            name: 'center-atom',
+                            title: 'Center Atom',
+                            author: 'kennyglenn'
                         }, {
                             name: 'center-radar',
                             title: 'Center Radar',