https redirect with acme-challenge

consider the acme-challenge with https redirect

docs/u_e-80_to_443.md

@@ -8,7 +8,15 @@ Open `data/conf/nginx/site.conf` and add a new site at the top of that file:
 server {
 	listen 80 default_server;
 	include /etc/nginx/conf.d/server_name.active;
-	return 301 https://$host$request_uri;
+
+	location ~ /\.well-known\/acme-challenge {
+		allow all;
+		default_type "text/plain";
+	}
+
+	location / {
+		return 301 https://$server_name$request_uri;
+	}
 }
 ```