Add graydon to a initial-designer marker team

[crlf0710]

This commit adds graydon hoare to a dedicated initial-designer marker team alumni to give credit to their initial contributions

cc #319

[jieyouxu]

Triage: I think the problem is that #council > Adding Graydon Hoare to an `initial-designer` marker team @ 💬

btw the alumni team is not currently on the website, AFAIK

I think?

[ehuss]

I think this is largely blocked in that it has no effect, and thus probably isn't worth merging right now.

It's maybe a larger questions of whether or not we want to publicly have archived teams appear on the website, or whether or not to have a consolidated alumni page, or any other kind of organization.

We also don't show any marker teams, which would also be a blocker here (and generally I would prefer to avoid use of marker teams like this).

I would also note that an alternate approach here would be to just add him as an alumni to another team, like core.

If the intent is mainly to manage the website, then I think the council's stance has largely been that we want to delegate ownership of that to the @rust-lang/website team. If they want to figure out some way to better highlight past members and archived teams, I don't think that really needs our involvement.

(There's maybe a minor concern that some people specifically don't want to be acknowledged. Probably not the case here, but something to be aware of if extending it more broadly.)

[Kobzol]

We also don't show any marker teams, which would also be a blocker here (and generally I would prefer to avoid use of marker teams like this).

We do actually! Since ~2 months ago or something, marker teams with a website entry are now shown on the webpage.

Regarding Graydon, I would perhaps just hardcode him on the web.

But having a dedicated alumni/archived team page would also be great.