feat: publicize doc implemetation

one/docs/en-US/components/region-picker.md

@@ -0,0 +1,79 @@
+# RegionPicker
+
+## Demos
+
+[[ demo src="/demo/region-picker/default.vue" ]]
+
+## API
+
+### Props
+
+| Name | Type | Default | Description |
+| -- | -- | -- | -- |
+| `datasource` | `Array<Object>` | `[]` | [^datasource] |
+| `selected` | `Array<string>` | - | [^selected] |
+| `include-indeterminate` | `boolean` | `false` | Whether to include indeterminate node into selected nodes. Non-leaf nodes inside `datasource` will be in indeterminate state if their descendant nodes are partially selected. |
+| `disabled` | `boolean=` | `false` | Whether the region picker is disabled. |
+| `readonly` | `boolean=` | `false` | Whether the region picker is read-only. |
+
+^^^datasource
+The datasource of the region picker. The type of node item is `{label, value, disabled, children, ...}`.
+
++++Properties
+| Name | Type | Description |
+| -- | -- | -- |
+| `label` | `string` | The descriptive label of the node. |
+| `value` | `string` | The value of the node. |
+| `disabled` | `boolean=` | Whether the node is disabled. |
+| `children` | `Array<Object>=` | The child nodes of the node. The node type is the same as `datasource` items. |
++++
+^^^
+
+^^^selected
+:::badges
+`v-model`
+:::
+
+The array of selected `value`s.
+^^^
+
+### Slots
+
+| Name | Description |
+| -- | -- |
+| `label` | [^scoped-slot-label] |
+
+^^^scoped-slot-label
+The label content of each node. Displays the `label` property of each item by default.
+
++++Scope properties
+| Name | Type | Description |
+| -- | -- | -- |
+| `label` | `string` | The descriptive label of the node. |
+| `value` | `string` | The value of the node. |
+| `disabled` | `boolean=` | Whether the node is disabled. |
+| `children` | `Array<Object>=` | The child nodes of the node. The node type is the same as `datasource` items. |
+| `level` | `number` | The depth of the node within the tree structure. `0` stands for the top level. |
+| `overlay` | `boolean=` | Whether the node is displayed inside the overlay. |
++++
+
+Additionally, custom properties apart from the listed ones will also be passes into the scope object via `v-bind`.
+
+:::tip
+When `level` is `2` and `overlay` is `true`, the information of selected node count vs total node count will be displayed after the node label.
+:::
+^^^
+
+### Events
+
+| Name | Description |
+| -- | -- |
+| `select` | [^event-select] |
+
+^^^event-select
+:::badges
+`v-model`
+:::
+
+Triggered when the selection changed. The callback parameter list is `(value: Array)`. The type of `value` is the same as the `selected` prop.
+^^^