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Webform link for customising is broken in docs

Frappe Web Forms Documentation

https://frappe.io/docs/v13/user/en/guides/portal-development/web-forms is broken
which is found in this page.
https://docs.erpnext.com/docs/v13/user/manual/en/website/web-form

Can someone tell me how can I unpublish a page?
I am selecting the unpublish checkbox, but i dont see a save or update button? this is on v13