Add Protobom to main page

[sevansdell]

Hi Security Tooling WG folks! When you get a chance, can you please add Protobom to your main page? I am sharing the project with an internal team, and am trying to also share how it is aligned to an OpenSSF WG. Thanks!

[ware]

And SBOMit, Bomctl & Minder as well. Working on it.