add Christoph Braun to editors

[elf-pavlik]

@uvdsl is one of Solid CG chairs, maintains https://github.com/uvdsl/solid-oidc-client-browser and has implemented and published about various topics based on Solid AuthN/AuthZ including work on MANDAT (which was presented at Solid World, Solid Practicioners, and Solid GG)

@dmitrizagidulin I also updated your status from Editor to Former Editor. It's mostly to reflect your limited engagement in recent years. If you prefer to stay listed as active Editor I'll just revert that change! We can also handle it as separate PR

@jeswr after we merge it could you plese also update permissions on this repo?

[uvdsl]

Thank you, @elf-pavlik. I am dedicated to allocate the required time and effort to move the Solid-OIDC specification forward.

[jeswr]

@jeswr after we merge it could you plese also update permissions on this repo?

Glad to see you as an editor! @Roberto-Breitman is now responsible for managing permissions on the @solid GitHub org. @Roberto-Breitman could you please action this once the PR is merged, thankyou!