Preview banner (ember-learn#599)

* adding info-banner

* fixing broken pages.yml

Author: mansona

config/environment.js

@@ -56,9 +56,13 @@ module.exports = function(environment) {
         }
       },
     ],
-    survey: {
-      link: 'https://emberjs.com/ember-community-survey-2019/',
-      title: '2019 Ember Community Survey'
+    infoBanner: {
+      content: `Thanks for taking the Octane preview for a test drive! Visit
+<a href="https://emberjs.com" target="_blank" rel="noopener">emberjs.com/octane</a>
+for more info and ways you can help out.
+These preview guides URLs are subject to change, so point your bookmarks at that landing page.
+If you are looking for the latest stable release of Ember, please instead visit
+<a href="https://guides.emberjs.com" target="_blank" rel="noopener">guides.emberjs.com</a>.`
     },
   };
 

guides/release/pages.yml

@@ -1,5 +1,8 @@
-- title: "What Is Ember"
-  url: "what-is-ember"
+- title: "Introduction"
+  url: 'index'
+  pages:
+    - title: "What Is Ember"
+      url: ""
 - title: "Getting Started"
   url: 'getting-started'
   pages:

package-lock.json

@@ -66,7 +66,7 @@
     "eslint-plugin-ember": "^6.2.0",
     "eslint-plugin-import": "^2.16.0",
     "guidemaker": "^1.2.0",
-    "guidemaker-ember-template": "^0.7.1",
+    "guidemaker-ember-template": "^1.0.0",
     "loader.js": "^4.7.0",
     "lodash": "^4.17.4",
     "markdown-link-extractor": "^1.1.1",