adding local antora build scripts and definitions

Author: tylerkelly13

.gitignore

@@ -12,3 +12,4 @@ vendor
 .DS_Store
 .vscode
 .*.swp
+build

antora-playbook.yml

@@ -0,0 +1,13 @@
+site:
+  title: TinyMCE 4 Documentation
+  url: https://tiny.cloud/docs
+  start_page: tinymce::index.adoc
+content:
+  sources:
+  - url: ./
+    branches: HEAD
+    start_path: ./
+ui:
+  bundle:
+    url: https://gitlab.com/antora/antora-ui-default/-/jobs/artifacts/master/raw/build/ui-bundle.zip?job=bundle-stable
+    snapshot: true

antora.yml

@@ -0,0 +1,13 @@
+name: tinymce
+title: TinyMCE Documentation
+version: '4'
+asciidoc:
+  attributes:
+    url: https://www.tiny.cloud
+    origin: https://www.tiny.cloud
+    baseurl:
+    shared_baseurl:
+    cdnurl: https://cloud.tinymce.com/stable/tinymce.min.js
+    default_meta_keywords: tinymce, documentation, docs, plugins, customizable skins, configuration, examples, html, php, java, javascript, image editor, inline editor, distraction-free editor, classic editor
+nav:
+- modules/ROOT/nav.adoc