Dev Home tools API is missing (docs/interface.md)

[colhountech]

Provide a description of requested docs changes

From https://github.com/microsoft/devhome/blob/main/docs/tools.md

"Create your XAML view and viewmodel. Your view class must inherit from ToolPage and implement requirements. Specifications for the Dev Home tools API` "

the link to Dev Home tools API is missing (docs/interface.md)

[colhountech]

I was following the docs as an intro to devhome and all make perfect sense until I got to the broken link above at which point, I couldn't follow the journey any further, if you are interested here is my notes on my initial onboarding experience.

https://github.com/colhountech/dev-home-notes