Add tip re. GitHub Pages re. "Deploy from a branch" to Hosting #1136

Job	Run time
pack	1m 15s
test (ubuntu-latest, npm, true)	3m 4s
test (ubuntu-latest, npm, false)	3m 4s
test (ubuntu-latest, pnpm, true)	2m 15s
test (ubuntu-latest, pnpm, false)	2m 20s
test (windows-latest, npm, true)	7m 3s
test (windows-latest, npm, false)	7m 28s
test (windows-latest, pnpm, true)	5m 22s
test (windows-latest, pnpm, false)	6m 57s
	38m 48s

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