[New Features]

- Added "HTTPS_PROTOCOLS" environment value to enable to customize TLS version. default value is "TLSv1.3". (because TLSv1.2 sometimes needed)
- READMD.md

confs/https.conf

@@ -1,7 +1,7 @@
 listen 0.0.0.0:8443 ssl %HTTP2%;
 ssl_certificate %HTTPS_CERT%;
 ssl_certificate_key %HTTPS_KEY%;
-ssl_protocols TLSv1.3;
+ssl_protocols %HTTPS_PROTOCOLS%;
 ssl_prefer_server_ciphers off;
 ssl_session_tickets off;
 %STRICT_TRANSPORT_SECURITY%