Add Preamble When Viewing Old Blog Posts

[dsanders11]

We could add some kind of website preamble to the blog in the future to indicate old articles to indicate stale content.

Maybe something like what The Guardian does?

Originally posted by @erickzhao in #845 (review)

[GauravKumar17]

Hi! 👋 I'd like to work on this issue if it's available. Could you please assign it to me?

[dsanders11]

@GauravKumar17, PRs are welcome, but we don't assign issues to external contributors.

[THEAbhishekjoshi]

Hi @dsanders11 ,

I’m working on adding preamble notes to outdated blog posts as discussed in #853 to help users know which content may no longer be up-to-date.

Could you please let me know->
->Which blog posts are considered outdated and need this warning.

->If there’s an existing list or guidelines on how to identify outdated content.