Functional & Design Document in Salesforce

How to create Functional & Design Document in Salesforce
What is Functional Document in Salesforce?
The functional specification document (FSD) contains the project's functional requirements and how they translate into storefront behavior and control. This document accounts for every functional requirement and contains an annotated representation of every page on the storefront and every state of the page
What is in a design document?
A design document is a complete high-level solution to the problem presented. It should be detailed enough that somebody who already understands the problem could go out and code the project without having to make any significant decisions.

[@dwarakagunda1299]

Great

[@kalpeshvaidya1870]

Could you share the download link for the document?

[@GUNJANASWANI]

Can you also share this document download link?