add bind user function

db/migrate/20201124114698_create_bind_users.rb

@@ -7,6 +7,8 @@ class CreateBindUsers < ActiveRecord::Migration
       t.column :wx_uid, :integer, :null=>false
       #老用户编号
       t.column :user_no, :string
+      #昵称
+      t.column :nickname,:string
       #备注
       t.column :remark,:string
       t.timestamps