Update installation.md

Nginx supports, but discourages the use of conditional statements in configuration files. The Nginx HTTPS server configuration was separated from the HTTP server configuration in order to remove the conditional statement that forced HTTPS to be enabled if the block was uncommented. Since the rules for the HTTP and HTTPS servers are now separated, `return` will only run once, instead of entering into an infinite loop like it would have before  if it was outside of the conditional statement and the configuration blocks were combined.

docs/user-guide/installation.md

@@ -89,33 +89,57 @@ upstream php {
     server 127.0.0.1:9000;
 }
 
+# HTTP
+
 server {
-    listen   *:80;
-#   listen   *:443 ssl;
-#   ssl_certificate     /etc/ssl/my.crt;
-#   ssl_certificate_key /etc/ssl/private/my.key;
-    root /var/www;
-    server_name example.com; # Or whatever you want to use
-    
-#   if ($scheme != "https") {
-#       return 301 https://$server_name$request_uri;
-#   }
+    listen       *:80;
+    root         /var/www;
+    server_name  example.com; # Or whatever you want to use
     
+#   return 301 https://$server_name$request_uri; # Forces HTTPS, which enables privacy for login credentials.
+                                                 # Recommended for public, internet-facing, websites.
+
     location / {
             try_files $uri $uri/ /index.php?$query_string;
             rewrite ^/([a-zA-Z0-9]+)/?$ /index.php?$1;
     }
-    
+
     location ~ \.php$ { 
             try_files $uri =404;
             include /etc/nginx/fastcgi_params;
-    
+
             fastcgi_pass    php;
             fastcgi_index   index.php;
             fastcgi_param   SCRIPT_FILENAME $document_root$fastcgi_script_name;
             fastcgi_param   HTTP_HOST       $server_name
     }
 }
+
+
+# HTTPS
+
+#server {
+#   listen              *:443 ssl;
+#   ssl_certificate     /etc/ssl/my.crt;
+#   ssl_certificate_key /etc/ssl/private/my.key;
+#   root                /var/www;
+#   server_name         example.com;
+#    
+#   location / {
+#           try_files $uri $uri/ /index.php?$query_string;
+#           rewrite ^/([a-zA-Z0-9]+)/?$ /index.php?$1;
+#   }
+#
+#   location ~ \.php$ { 
+#           try_files $uri =404;
+#           include /etc/nginx/fastcgi_params;
+#    
+#           fastcgi_pass    php;
+#           fastcgi_index   index.php;
+#           fastcgi_param   SCRIPT_FILENAME $document_root$fastcgi_script_name;
+#           fastcgi_param   HTTP_HOST       $server_name
+#   }
+#}
 ```
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