adding UHF and breadcrumbs

devices/surface-hub/breadcrumb/toc.yml

@@ -0,0 +1,7 @@
+- name: Docs
+  tocHref: /
+  topicHref: /
+  items:
+    - name: Surface Hub
+      tocHref: /surface-hub
+      topicHref: /surface-hub/index

devices/surface-hub/docfx.json

@@ -3,7 +3,7 @@
     "content":
       [
         {
-          "files": ["**/**.md"],
+          "files": ["**/**.md", "**/**.yml"],
           "exclude": ["**/obj/**"]
         }
       ],
@@ -13,7 +13,9 @@
           "exclude": ["**/obj/**"]
         }
     ],
-    "globalMetadata": {
+	"globalMetadata": {
+		"uhfHeaderId": "MSDocsHeader-WindowsIT", 
+	    "breadcrumb_path": "/surface-hub/breadcrumb/toc.json",
         "ROBOTS": "INDEX, FOLLOW",
 		"ms.technology": "windows",
 		"ms.topic": "article",