Is your feature request related to a problem? Please describe.

Hi, I want to use hero image which can be fetched by URL e.g. https://.../image.png like this:

---
title: Using Article Hero Image by URL
author: Tanaka Tarou
date: 2020-05-14
hero: https://.../image.png
excerpt: How can I do it?
---

But it end up with,

![image](https://user-images.githubusercontent.co

Sites such as https://notes.apiscp.com/ or https://openshift.ktz.cloud/ where you need to scroll the tag list doesn't allow you to select the latest ones as the theme selector overlays them.

Problem

Right now in all of the blog themes the next/previous post links are very blank and simplistic - it would be nice to make these a bit nicer and easier to use, maybe incorporate some featured images, etc.

Possible solution

The post footer is contained in the file src/components/post-footer.js and would be an easy place to jump in and start playing around.