Document missing utility types

[karlhorky]

#798 and #801 added a Utility Types page.

It would be nice if the documentation here was comprehensive, with most common utility types.

I was thinking of ReadonlyArray and such (but those are covered by #1023).

There's a "comprehensive list" here, although I don't think it's comprehensive either:

https://codewithstyle.info/Comprehensive-list-of-useful-built-in-types-in-TypeScript/

[jpelton-stroud]

Not sure when it changed (possibly with the closing of #798), but it looks like the types cited by CodeWithStyle are now included in the Utility Types page.

Browsing through lib.es2015.d.ts, I (admittedly somewhere between "novice" & "intermediate") don't see anything ts-specific that I would consider "general/common use". Should this issue be considered closed, or am I missing something obvious?

[karlhorky]

I guess it looks like the types are included now, so I will close :)

Thanks for the heads up @jpelton-stroud !