doc: add version meta for SSL_CERT_DIR/FILE

The metadata markup for when SSL_CERT_DIR and SSL_CERT_FILE added in
33012e9866 is missing.

PR-URL: https://github.com/nodejs/node/pull/11007
Reviewed-By: Evan Lucas <evanlucas@me.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

doc/api/cli.md

@@ -376,6 +376,9 @@ If the [`--openssl-config`][] command line option is used, the environment
 variable is ignored.
 
 ### `SSL_CERT_DIR=dir`
+<!-- YAML
+added: REPLACEME
+-->
 
 If `--use-openssl-ca` is enabled, this overrides and sets OpenSSL's directory
 containing trusted certificates.
@@ -385,6 +388,9 @@ evironment variable will be inherited by any child processes, and if they use
 OpenSSL, it may cause them to trust the same CAs as node.
 
 ### `SSL_CERT_FILE=file`
+<!-- YAML
+added: REPLACEME
+-->
 
 If `--use-openssl-ca` is enabled, this overrides and sets OpenSSL's file
 containing trusted certificates.