example(amount):fix title key

xxyan0205 · xxyan0205 · commit f0a406bb02cb · 2018-07-01T01:44:53.000+08:00
diff --git a/components/amount/demo/cases/demo1.vue b/components/amount/demo/cases/demo1.vue
@@ -13,7 +13,7 @@ export default {
   name: 'amount-demo',
   /* DELETE */
   title: '千位分隔符',
-  titleEnUs: 'Thousands Separator',
+  titleEnUS: 'Thousands Separator',
   /* DELETE */
   components: {
     [Amount.name]: Amount,
diff --git a/components/amount/demo/cases/demo2.vue b/components/amount/demo/cases/demo2.vue
@@ -14,7 +14,7 @@ export default {
   name: 'amount-demo',
   /* DELETE */
   title: '变化动画',
-  titleEnUs: 'Animation',
+  titleEnUS: 'Animation',
   /* DELETE */
   components: {
     [Amount.name]: Amount,
diff --git a/components/amount/demo/cases/demo3.vue b/components/amount/demo/cases/demo3.vue
@@ -13,7 +13,7 @@ export default {
   name: 'amount-demo',
   /* DELETE */
   title: '大写中文',
-  titleEnUs: 'Capital Chinese',
+  titleEnUS: 'Capital Chinese',
   /* DELETE */
   components: {
     [Amount.name]: Amount,
