Minor comment changes

roles/matrix-nginx-proxy/defaults/main.yml

@@ -442,11 +442,11 @@ matrix_ssl_domains_to_obtain_certificates_for: "{{ matrix_ssl_additional_domains
 matrix_ssl_additional_domains_to_obtain_certificates_for: []
 
 # Controls whether to obtain production or staging certificates from Let's Encrypt.
-# If you'd like to use another ACME certificate server (not Let's Encrypt), see `matrix_ssl_lets_encrypt_server`
+# If you'd like to use another ACME Certificate Authority server (not Let's Encrypt), use `matrix_ssl_lets_encrypt_server`
 matrix_ssl_lets_encrypt_staging: false
 
-# Controls the server used to retrieve the SSL certificates (passed as a `--server` flag to Certbot).
-# By default, we use the Let's Encrypt production environment (see `matrix_ssl_lets_encrypt_staging` for using the staging environment).
+# Controls from which Certificate Authority server to retrieve the SSL certificates (passed as a `--server` flag to Certbot).
+# By default, we use the Let's Encrypt production environment (use `matrix_ssl_lets_encrypt_staging` for using the staging environment).
 # Learn more here: https://eff-certbot.readthedocs.io/en/stable/using.html#changing-the-acme-server
 matrix_ssl_lets_encrypt_server: ''