Improve writing

[ci skip]

h5bp/ssl/policy_modern.conf

@@ -5,7 +5,7 @@
 # For services that want to be on the bleeding edge, the parameters below
 # sacrifice compatibility for the highest level of security and performance.
 #
-# (!) TLSv1.3 and it's 0-RTT feature require NGINX >=1.15.4 and OpenSSL >=1.1.1
+# (!) TLSv1.3 and its 0-RTT feature require NGINX >=1.15.4 and OpenSSL >=1.1.1
 #     to be installed.
 #
 # (!) Don't enable `ssl_early_data` blindly! Requests sent within early data are
@@ -23,7 +23,8 @@
 #
 # (!) Requests sent within early data are subject to replay attacks.
 #     To protect against such attacks at the application layer, the
-#     $ssl_early_data variable should be used:
+#     `$ssl_early_data` variable should be used:
+#
 #         proxy_set_header Early-Data $ssl_early_data;
 #
 #     The application should return response code 425 "Too Early" for anything