docs: update the documentation for OrangeCircle and GreenRhombus

pages/docs/config/cgi-scgi-jsgi-php.md

@@ -58,7 +58,26 @@ OrangeCircle can be configured in _orangecircle-config.json_ file in SVR.JS inst
 }
 ```
 
-OrangeCircle 1.0.7 and newer work with web root outside SVR.JS installation directory (older ones need _config.json_ file in web root with valid JSON data; not necessarily related to _config.json_ in SVR.JS installation directory)
+OrangeCircle 1.0.7 and newer work with web root outside SVR.JS installation directory (older ones need _config.json_ file in web root with valid JSON data; not necessarily related to _config.json_ in SVR.JS installation directory).
+
+OrangeCircle 1.3.0 and newer support multiple SCGI servers. These versions of OrangeCircle can be configured to use multiple SCGI servers like this:
+
+```json
+{
+  "multiConfig": {
+	"example.com": {
+	  "path": "/scgi",
+	  "host": "localhost",
+	  "port": 4000
+	},
+	"example.org": {
+	  "path": "/scgiorg",
+	  "host": "localhost",
+	  "port": 4001
+	}
+  }
+}
+```
 
 ## JSGI via YellowSquare
 

pages/docs/config/fastcgi-php-fpm.md

@@ -35,6 +35,25 @@ You can configure file extensions outside of path specified in _greenrhombus-con
 [".php"]
 ```
 
+GreenRhombus 1.1.0 and newer support multiple FastCGI servers. These versions of GreenRhombus can be configured to use multiple FastCGI servers like this:
+
+```json
+{
+  "multiConfig": {
+	"example.com": {
+	  "path": "/fastcgi",
+	  "host": "localhost",
+	  "port": 7000
+	},
+	"example.org": {
+	  "path": "/fastcgiorg",
+	  "host": "localhost",
+	  "port": 7001
+	}
+  }
+}
+```
+
 ## PHP-FPM
 
 GreenRhombus supports running PHP files through PHP-FPM. If you want to use GreenRhombus only for PHP-FPM, configure _greenrhombus-config.json_ like this (in this case we're using socket in `/run/php/php8.2-fpm.sock`; you can check it in PHP-FPM configuration file, e.g. `/etc/php/8.2/fpm/pool.d/www.conf`; configure it without _path_ property):
@@ -51,6 +70,20 @@ And configure _greenrhombus-scriptexts.json_ like this:
 [".php"]
 ```
 
+If using GreenRhombus 1.1.0 or newer, you can configure GreenRhombus to connect to multiple PHP-FPM instances like this:
+```json
+{
+  "multiConfig": {
+	"example.com": {
+	  "socketPath": "/run/php/php8.2-fpm.sock"
+	},
+	"example.org": {
+	  "socketPath": "/run/php/php7.4-fpm.sock"
+	}
+  }
+}
+```
+
 PHP-FPM may run on different user than SVR.JS web server, so you may need to set permissions for the user, which PHP-FPM runs on.
 
 If you are using PHP-FPM only for SVR.JS, you can set the _listen.owner_ and _listen.group_ properties to _svrjs_ in the PHP-FPM configuration file (e.g. `/etc/php/8.2/fpm/pool.d/www.conf`).