Update links to docs from .md files (#5450)
@veyalla After noticing that the CACertificates readme had some outdated links, I did a scrub of links to docs.microsoft.com in the other markdown files to make sure they were still pointing to the correct info/not redirecting/not 404'ing.
I also replaced the X.509 DPS content with a 'deprecated' note and a link to the doc that was published at GA. I can delete the file, but didn't know if anything linked to it still.
I don't know why the quotation marks and apostrophes changed in reported_states_during_deployment.md -- it could have been done by the docs extension since those Word-style punctuation marks often render odd on the docs site. I can undo that if you have any concerns.
