Update .openpublishing.publish.config.json

Author: Den Delimarsky

.openpublishing.publish.config.json

@@ -27,8 +27,18 @@
       "url": "https://github.com/Microsoft/templates.docs.msft",
       "branch": "master",
       "branch_mapping": {}
+    },
+    {
+      "path_to_root": "_themes.pdf",
+      "url": "https://github.com/Microsoft/templates.docs.msft.pdf",
+      "branch": "master"
     }
   ],
+  "Targets": {
+    "Pdf": {
+      "template_folder": "_themes.pdf"
+    }
+  },
   "branch_target_mapping": {
     "live": [
       "Publish",
@@ -38,4 +48,4 @@
   "need_generate_pdf_url_template": true,
   "need_generate_pdf": false,
   "need_generate_intellisense": false
-}
+}