Update _config.yml

docs/_config.yml

@@ -1 +1,10 @@
-theme: jekyll-theme-tactile
+theme: jekyll-theme-tactile
+
+topnav_title:  Azure DevOps Demo Generator
+# this appears on the top navigation bar next to the home button
+
+site_title: Azure DevOps Demo Generator
+# this appears in the html browser tab for the site title (seen mostly by search engines, not users)
+
+github:
+  is_project_page: false