refactor: make Further Reading display the latest posts.

[huanyushi]

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Improvement (refactoring and improving code)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation update

Description

I modified the code in _includes/related-posts.html to enable Further Reading to display the latest posts, as stated in the title.

I need to explain why I made this change.

Consider a scenario where we have five different posts, e.g.

_posts
├─ Title1.md
├─ Title2.md
├─ Title3.md
├─ Title4.md
└─ Title5.md

each of which has the same score calculated in _includes/related-posts.html. When we open any of these posts, Further Reading always displays the three oldest posts instead of the three most recently updated ones.

Before

As an example, when we open Title4 post, It shows Title1, Title2 and Title3,

The same is true when opening Title5. No matter how many posts we write later, it will always display only the first 3 posts.

After

We might prefer it to show the latest 3 posts, e.g. Title2, Title3, Title5. My PR can make the blog produce the following effects:

Additional context

I'm not familiar with Liquid, so these changes were based on my interpretation of the official documentation. There may be other ways to further simplify it, but it does work effectively.

[cotes2020]

If you want to add the release date as a sorting factor, putting the match_posts in reverse order will do it.

{% assign match_posts = match_posts | reverse %}

[huanyushi]

Thanks for your suggestions, I have already made the modification. If you don't think the theme needs to be changed, you can just close this PR.

[github-actions]

🎉 This PR is included in version 7.0.0 🎉

The release is available on:

• v7.0.0
• GitHub release

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