Update article-detail.vue

@@ -167,7 +167,7 @@ export default {
       this.scrollTop = scrollTop;
     },
     onShowMore() {
-      this.$refs.moreAction.show(this.article);
+      this.$refs.moreAction.show(this.articleInfo);
     },
     onFollowAuthor(data, follow) {
       this.CHANGE_AUTHOR_FOLLOW({authorUid: data.authorUid, authorType: data.authorType, follow});