Docs: updates for new and archived branches #141

Job	Run time
Set root URL	2s
Get date	3s
Set development preview build condition	4s
Get PRs info	8s
Build main website	27s
PR preview setup	5s
Build development website	0s
Create PR previews list page	8s
Build PR 252	23s
Build PR 691	17s
Build PR 309	16s
Build PR 307	16s
Set entire website structure	10s
deploy	10s
pr-preview (691, some updates for new and archived branches, 7ce70b648d1f86cafd81af54ea414d5998ac...	8s
pr-preview (307, Updated RTD build to set edit_uri dynamically, 9589f494d8ab9caa70cbd40c72c1c3fb2...	8s
pr-preview (252, Update mkdocs.yml to fix link problem, 16eb9733ac9e1469ea93665ded6a28190664be69,...	8s
pr-preview (309, Test rtd build update, e9bd312f893e61d90bf9052789a8e4b53d6819c2, https://access-...	6s
failed-preview	-1s
	2m 58s

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