Menu On New Vendor Admin Panel

Hello everyone, I plan to create user manual using Docsyard and keep the file at, and I want to create a menu (User Manual) on the new and classic vendor admin panel to redirect the vendor to this location when clicks, can any show me how to do that?

Thanks a lot

[attachment=15465:User Manual-New.png]

[attachment=15464:User Manual-Classic.png]

User Manual-New.png

User Manual-Classic.png