Added OpenSSL Security Level section to docs/api/tls.md

[afanasy]

@pimterry Docs update as discussed #49236.

[avivkeller]

A few nitpicks, but this is non blocking, nor does it have the power to (because I'm not a core collaborator, but rather a issue triager)

[pimterry]

Echoing the couple of last small tweaks from @redyetidev, but once those are resolved this all looks good to me. Thanks for putting this together @afanasy, looks great & it'll be super helpful for others trying to use old TLS settings.

[avivkeller]

Also, the commit message of the first commit should begin with the change category/subsystem, and then the commit message starting with a present-tense verb.

For example,
doc: add OpenSSL security level to TLS docs

[afanasy]

@redyetidev@pimterry Thank you so much for the prompt review! I've made the changes you've mentioned and force-pushed to update the commit message.

[nodejs-github-bot]

Landed in 059f2f4