feat: publicize doc implemetation

one/docs/demo/checkbox/value.vue

@@ -0,0 +1,33 @@
+<template>
+<article>
+  <veui-checkbox
+    v-model="status"
+    true-value="CONFIRMED"
+    false-value="UNCONFIRMED"
+  >
+    I've read the agreement
+  </veui-checkbox>
+  <p>State: {{ statusMap[status] }}</p>
+</article>
+</template>
+
+<script>
+import { Checkbox } from 'veui'
+
+const STATUS_MAP = {
+  CONFIRMED: 'Confirmed',
+  UNCONFIRMED: 'Not confirmed'
+}
+
+export default {
+  components: {
+    'veui-checkbox': Checkbox
+  },
+  data () {
+    return {
+      status: 'UNCONFIRMED',
+      statusMap: STATUS_MAP
+    }
+  }
+}
+</script>