修改用户注册 head 标题

pages/user/register.vue

@@ -108,11 +108,13 @@ export default {
     InputArea,
     Agreement
   },
+
   head() {
     return {
-      script: [
-        { src: "https://cdn.dingxiang-inc.com/ctu-group/captcha-ui/index.js" }
-      ]
+        title: "用户注册-程序员客栈",
+        script: [
+          { src: "https://cdn.dingxiang-inc.com/ctu-group/captcha-ui/index.js" }
+        ]
     };
   },
   data() {