refactor: Display "Update:" only if modDateTime more current than pubDateTime

[pickyzz]

Hello, I usually create a new post with FrontMatterCMS (vscode plugin) which creates both pubDateTime and modDateTime at the same time in a new post.

Then I noticed that. When the time of both parts is the same. The page will show the word "Update". I would like to change this to show the word "Update" only if modDateTime is more current than pubDateTime.

Thank you for creating this theme. Hopefully, this small change will be beneficial to you.

[satnaing]

I thought no one would add modDatetime unless they update the blog post. Always good to hear the unexpected scenarios like this.

[pickyzz]

I apologize for the mistake. I was debugging for the first time on my blog and forgot to revert the null checking. I have made the corrections as you suggested and has been tested.

Thank you for your advice.

[satnaing]

Thanks for your contribution. Just merged. 🎉