convert website from hugo to gatsby (#1369)

website/content/docs/widgets/boolean.md

@@ -0,0 +1,17 @@
+---
+label: "Boolean"
+target: boolean
+---
+
+The boolean widget translates a toggle switch input to a true/false value.
+
+- **Name:** `boolean`
+- **UI:** toggle switch
+- **Data type:** boolean
+- **Options:**
+  - `default`: accepts `true` or `false`; defaults to `false`
+- **Example:**
+
+  ```yaml
+  - {label: "Draft", name: "draft", widget: "boolean", default: true}
+  ```