[FEATURE]: add “Edit on GitHub” buttons

[CBID2]

🔖 Feature description

This feature is an Edit on GitHub button that appears at the bottom of a page on DocsGPT’s Doc site.

🎤 Why is this feature needed ?

In my experience with docs pages, having an edit button will make it easier for contributors to find the page that they need to refer to when making an update to a guide or what part of the documentation site.

✌️ How do you aim to achieve this?

I plan on asking @dartpain what has been used to build DocsGPT’s documentation site. From there, I will go to the tool’s website and find its tutorial on how to add edit buttons.

🔄️ Additional Information

I would for this to count towards Hacktoberfest

👀 Have you spent some time to check if this feature request has been raised before?

• I checked and didn't find similar issue

Are you willing to submit PR?

Yes I am willing to submit a PR!

[dartpain]

we used nextra to build our documentation.
It should be located in the /docs directory of this project.

Thank you!