build: fix demo deployment

The demo was being deployed from the wrong directory.

Author: crisbeto

angular.json

@@ -84,7 +84,7 @@
           "builder": "angular-cli-ghpages:deploy",
           "options": {
             "buildTarget": "demo:build:production",
-            "dir": "dist/demo"
+            "dir": "dist/demo/browser"
           }
         }
       }

src/demo/app/demo.component.html

@@ -87,7 +87,7 @@ <h3>Customize!</h3>
     </div>
     <div class="cf">
       <label for="innerCircleFill">Inner circle fill color:</label>
-      <input id="innerCircleFill" name="innerCircleFill" type="text" [(ngModel)]="innerCircleFill" />
+      <input id="innerCircleFill" name="innerCircleFill" type="color" [(ngModel)]="innerCircleFill" />
     </div>
   </form>
 </div>