Add theme

Author: Robinlovelace

themes/github.com/wowchemy/wowchemy-hugo-themes/modules/wowchemy-plugin-netlify-cms/README.md

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+# Wowchemy CMS
+
+A Content Management System (CMS) for the [Wowchemy](https://wowchemy.com) website builder.
+
+Built upon the open source [Netlify CMS](https://www.netlifycms.org/) and [Netlify Identity](https://docs.netlify.com/visitor-access/identity/#enable-identity-in-the-ui) projects.
+
+## Install
+
+1. Edit `config/_default/config.yaml` to install the `wowchemy-plugin-netlify-cms` module:
+
+   ```yaml
+   module:
+     imports:
+       - path: github.com/wowchemy/wowchemy-hugo-themes/modules/wowchemy-plugin-netlify-cms
+   ```
+
+2. Create a `content/admin/index.md` file containing:
+
+   ```yaml
+   ---
+   type: wowchemycms
+   private: true
+   outputs:
+     - wowchemycms_config
+     - HTML
+   ---
+
+   ```
+
+3. (Optional) If your Git repository's branch is **not** `main`, define it in `config/_default/params.yaml`:
+
+   ```yaml
+   extensions:
+     cms:
+       branch: master
+   ```

themes/github.com/wowchemy/wowchemy-hugo-themes/modules/wowchemy-plugin-netlify-cms/config.yaml

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+module:
+  mounts:
+    - source: data
+      target: data
+    - source: functions
+      target: layouts/partials/mod-wowchemy-cms
+    - source: templates
+      target: layouts/wowchemycms
+outputFormats:
+  wowchemycms_config:
+    baseName: config
+    isPlainText: true
+    mediatype: application/yaml
+    notAlternative: false
+mediaTypes:
+  application/yaml:
+    suffixes:
+      - yml