Add Elliot Goodrich to delegates.txt

[elliotgoodrich]

No description provided.

[jkup]

New delegate checklist is waiting for review right now

[linusg]

I can't find the document that describes it right now it but the correct acronym would be EGH.

[linusg]

Here it is: https://github.com/tc39/how-we-work/blob/main/how-to-take-notes.md#the-attendee-list

Normally we use three letters: first letter of first name, first letter of last name, last letter of last name. Old-timers are grandfathered-in with two-letter initials.

[elliotgoodrich]

Thank you @linusg - I have updated the initialism.