Add "Last Edited" details in Markdown frontmatter on prebuild

[erickzhao]

[ConnectBhawna]

Hello @erickzhao , could you provide further details regarding this issue and what needs to be addressed specifically?

I'm eager to delve into this task to gain a deeper understanding of the codebase. I'm also curious if there's a community channel available where we can discuss matters with mentors, such as issues and progress.

Thank you. Best regards, BHawna