Add Key and cert in CURL

https://downey.io/notes/dev/curl-using-mutual-tls/

curl --cert 'abc.com_digicert_sha2_secure_server_ca_.pem' \
--key 'abc.com_digicert_sha2_secure_server_ca_.pkcs8' \
--location --request POST 'https://demo--test.my.salesforce.com:8443/services/oauth2/token' \
--header 'Content-Type: application/x-www-form-urlencoded' \
--header 'Cookie: BrowserId=4jzphkElEeu76TsJSxG4Tw' 

curl --cacert ca.crt \
     --key client.key \
     --cert client.crt \
https://cloud-controller-ng.service.cf.internal:9023/internal/v4/syslog_drain_urls