message: Update nginx readme with instruction to generate full certificate chain.
diff: Get a cert from //ssladmin for the uri you want.
  -Turn your pfx into a pem. Turn your cert into a .key and .crt file. A private and public key.
  +Turn your pfx into a pem. Turn your cert into a .key (private key) and .crt (public key) file.
  ```bash
  openssl pkcs12 -in eu2_cert.pfx -out eu2-cert.pem -nodes
  @@ -7,6 +7,11 @@ openssl rsa -in eu2-cert.pem -out tls.key
  openssl x509 -in eu2-cert.pem -out tls.crt
  ```
  +If the .crt file does not include full certificate chain, run the following command to generate intermediate certificates.
  +```bash
  +openssl crl2pkcs7 -nocrl -certfile eu2-cert.pem.pem | openssl pkcs7 -print_certs -out tls.crt
  +```
  +
  Optionally generate dhparams. Or, much quicker, just take already generated ones from another of our servers
  ```bash
  openssl dhparam -out dhparam.pem 4096
  