SEO优化之文章内容页面的description和keywords不生效

[zjcscut]

Is your feature request related to a problem? Please describe. A clear and concise description of what the problem is. Ex. I'm always frustrated when [...] (是否与都个问题有有关，请详细描述)

文章内容页面的页面中的meta中的description和keywords不生效，使用了全局配置中的description和keywords。例如：

---
title: 基于Canal和Kafka实现MySQL的Binlog近实时同步
date: 2020-03-07 00:47:46
album: 中间件专栏
tags:
  - Middleware
  - Canal
categories:
  - Middleware
description: 基于Canal和Kafka实现MySQL的Binlog近实时同步 - 中间件 - Throwable
keywords:
  - Canal
  - Kafka
  - Binlog
  - MySQL
cover: https://cdn.vlts.cn/articles/b6f47bd91065b96a6249fdcd02e0ee3e.webp
---

Describe the solution you'd like A clear and concise description of what you want to happen.（描述想要的效果）

文章的front-matter中的author、description和keywords如果定义了，覆盖全局配置的author、description和keywords

Additional context or screenshots Add any other context or screenshots about the feature request here.（附加信息或者截图）

文章：https://vlts.cn/post/canal-kafka-mysql-binlog-sync-guide

[bennyxguo]

Duplicate of #215