Add block documentation to woocommerce/product-checkbox-field (#40277)

* Rename block description

* Add documentation for product checkbox field

* Add changelog

* Improve README

* Add description to block's attributes

* Replace example

* Add markdown table with documentation

* Move image to developer.woocommerce.com

* Iterate documentation

* Address lints

packages/js/product-editor/changelog/doc-checkbox-field

@@ -0,0 +1,5 @@
+Significance: patch
+Type: enhancement
+Comment: Add documentation for woocommerce/product-checkbox-field
+
+

packages/js/product-editor/src/blocks/checkbox/README.md

@@ -0,0 +1,67 @@
+# woocommerce/product-checkbox-field
+
+A reusable checkbox for the product editor.
+
+![Product checkbox field screenshot](https://woocommerce.files.wordpress.com/2023/09/checkbox.png)
+
+_Please note that to persist a custom field in the product it also needs to be added to the WooCommerce REST API._
+
+## Attributes
+
+### title
+
+- **Type:** `String`
+- **Required:** `No`
+
+Header that appears above the checkbox.
+
+### label
+
+- **Type:** `String`
+- **Required:** `No`
+
+Label that appears at the side of the checkbox.
+
+### property
+
+- **Type:** `String`
+- **Required:** `Yes`
+
+Property in which the checkbox value is stored.
+
+### tooltip
+
+- **Type:** `String`
+- **Required:** `No`
+
+Tooltip text that is shown when hovering the icon at the side of the label.
+
+## Example
+
+Here's an example on the code that is used for the 'sold_individually' field in the Inventory section:
+
+```php
+$parent_container->add_block(
+  [
+    'id'         => 'product-limit-purchase',
+    'blockName'  => 'woocommerce/product-checkbox-field',
+    'order'      => 20,
+    'attributes' => [
+      'title'    => __(
+        'Restrictions',
+        'woocommerce'
+      ),
+      'label'    => __(
+        'Limit purchases to 1 item per order',
+        'woocommerce'
+      ),
+      'property' => 'sold_individually',
+      'tooltip'  => __(
+        'When checked, customers will be able to purchase only 1 item in a single order. This is particularly useful for items that have limited quantity, like art or handmade goods.',
+        'woocommerce'
+      ),
+    ],
+  ]
+);
+```
+

packages/js/product-editor/src/blocks/checkbox/block.json

@@ -4,7 +4,7 @@
 	"name": "woocommerce/product-checkbox-field",
 	"title": "Product checkbox control",
 	"category": "woocommerce",
-	"description": "The product checkbox.",
+	"description": "A reusable checkbox for the product editor.",
 	"keywords": [ "products", "checkbox", "input" ],
 	"textdomain": "default",
 	"attributes": {