remove text noise created by stock openssl

remove spurious file-cat of debug file

Merge pull request #105 from alecmuffett/20220313-fix-issue-104

commit: add empty value as default for 3.

doc nit

and more warnings

and more warnings, this is why I hate breaking changes.

add warning signs

helpful diag re: self-signed certs

Merge pull request #103 from alecmuffett/20220305-inject-multiple-extra-headers-upstream

commit: document cert pathnames better

commit: more docs

commit: more docs

commit: first cut

Merge pull request #101 from alecmuffett/20210804-separate-ssl-certs-per-onion