Update the authorship in README

[cmsj]

Hello Terminator maintainers!

I noticed recently that I'm still listed at the top of the README and it struck me that I haven't been involved in Terminator for many years at this point, and so it feels a bit unfair to everyone else who has carried the project since I moved on.

Personally I would suggest putting the name of the current maintainer there, but I leave that choice up to you - I'm just here to say that there's no need for my name to still be there :)

[mattrose]

So many years, but you're still number one in number of commits and neither Markus and I would have this wonderful program but for your original contribution. We could modify it to say something like, Originally by cmsj@tenshu, maintained from 2014 to 2020 by Stephen Boddy, currently maintained by Markus Frosch and Matt Rose and many others. That seems a little wordy, but we could do it if you think that's good.

[mattrose]

Btw, good to hear from you! I've been using terminator since 0.1 and it's made my life as a sysadmin and developer much better, so thank you for starting this. Apparently I couldn't live without it enough that I offered to take over maintainership of it rather than go without 😄

[maximstewart]

@mattrose I like your wording even though you think it's long. You could also just do a core maintainer list in order of stewardship, their time of service, and of course marking the originator(s) of the project.

[lazyfrosch]

Thanks @cmsj for your input, I think we should mention @mattrose as the main maintainer there, all other are mentioned in the AUTHORS file either way.

Or just leave names out there and mention the full list.

[cmsj]

I'm fine with any option you choose, whether it mentions me or not.

Thanks for keeping the project alive!