feat(v2): bootstrap bootstrap (heh) theme, preset, template (#2557)

* feat(v2): Add bootstrap theme structure

* chore(v2): run prettier

* chore(v2): remove unused dependencies

* feat(v2): add bootstrap preset

* feat(v2): add bootstrap template

* remove unnecessary stuff

* --

Co-authored-by: Yangshun Tay <tay.yang.shun@gmail.com>

packages/docusaurus-preset-bootstrap/src/index.js

@@ -0,0 +1,13 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+module.exports = function preset(context, opts = {}) {
+  return {
+    themes: [['@docusaurus/theme-bootstrap', opts.theme]],
+    plugins: [['@docusaurus/plugin-content-pages', opts.pages]],
+  };
+};