Request for Python Triage membership: @slateny

[iritkatriel]

Request for Python Triage membership

	Description
GitHub username	@slateny
bpo username	slateny
Additional info	"recommended by @iritkatriel"

[AlexWaygood]

+1. @slateny's been doing a sterling job on docs issues. From what I've seen, their PRs are always careful and considered, and they've consistently been willing to take feedback on board when it's offered.

[zware]

@python/infrastructure-staff, I think the only step these days is an invite to the python/python-triage group.

I no longer have power to help these along, but support the promotion :)

[JelleZijlstra]

While you're at it, please do this for @hauntsaninja too (#443).

[benjaminp]

invited both