كيفية استبدال شهادات Let's Encrypt RSA 4096 بت بشهادات ECC 256 بت؟

@mpalmer does this request make sense to you? Is there anything off with our current certificate config in NGINX?

OK per https://www.ssl247.com/kb/ssl-certificates/generalinformation/what-is-rsa-dsa-ecc ECC is latest and greatest, so I guess we should at least document how to do this. Not sure.