[Improvement] Rate: rename component (#1002)

docs/demos/views/rate.vue

@@ -0,0 +1,52 @@
+<template>
+  <demo-section>
+    <demo-block :title="$t('basicUsage')">
+      <van-rate v-model="valueA" />
+    </demo-block>
+
+    <demo-block :title="$t('customColor')">
+      <van-rate
+        v-model="valueB"
+        :size="25"
+        :todal="6"
+        :color="'#2ba'"
+        :default-color="'#ceefe8'"
+      />
+    </demo-block>
+
+     <demo-block :title="$t('disabled')">
+      <van-rate disabled v-model="valueC" />
+    </demo-block>
+  </demo-section>
+</template>
+
+<script>
+export default {
+  i18n: {
+    'zh-CN': {
+      disabled: '禁用状态',
+      customColor: '自定义颜色'
+    },
+    'en-US': {
+      disabled: 'Disabled',
+      customColor: 'Custom Color'
+    }
+  },
+
+  data() {
+    return {
+      valueA: 3,
+      valueB: 4,
+      valueC: 2
+    };
+  }
+};
+</script>
+
+<style lang="postcss">
+.demo-rate {
+  .van-rate {
+    margin-left: 15px;
+  }
+}
+</style>