text: const mongoose = require('mongoose');
  const Schema = mongoose.Schema;
  
  const article = new Schema({
      title: { type: String },
      body: { type: String },
      topic: { type: String },
      createAt: { type: Date, default: Date.now }
  })
  
  module.exports = mongoose.model(
      'Articles',
      article,
      'Articles'
  );