Add RSYNC where available to openindiana download mirrors

Author: microchip8

docs/handbook/openindiana-download-mirrors.md

@@ -32,8 +32,8 @@ List of DLC Mirrors
  Mirror                                                                               | Type      | Location            | Connectivity | Provided by                             | Mirror site                                               | Status
  ------------------------------------------------------------------------------------ | --------- |-------------------- | ------------ | --------------------------------------  | --------------------------------------------------------- | ----------------------
 [dlc.openindiana.org](https://dlc.openindiana.org/)                                   | HTTPS     | London, UK          | 1Gbit/s      | Krystal Hosting Ltd.                    | [krystal.io](https://krystal.io/)                         | Main download location
-[mirrors.dotsrc.org/openindiana](https://mirrors.dotsrc.org/openindiana/)             | HTTPS/FTP | Aalborg, Denmark    | 10Gbit/s     | Dotsrc.org                              | [dotsrc.org](https://dotsrc.org/)                         | Up to date
+[mirrors.dotsrc.org/openindiana](https://mirrors.dotsrc.org/openindiana/)             | HTTPS/FTP/RSYNC | Aalborg, Denmark    | 10Gbit/s     | Dotsrc.org                              | [dotsrc.org](https://dotsrc.org/)                         | Up to date
 [ftp.nluug.nl/pub/os/openindiana.org](https://ftp.nluug.nl/pub/os/openindiana.org/)   | HTTPS/FTP | Ede, Netherlands    | 1Gbit/s      | NLUUG                                   | [nluug.nl](https://www.nluug.nl/)                         | Up to date
-[mirror.math.princeton.edu/pub/openindiana](https://mirror.math.princeton.edu/pub/openindiana) <br> [mirror.math.princeton.edu/pub/openindiana-iso](https://mirror.math.princeton.edu/pub/openindiana-iso/) | HTTPS | Princeton, NJ (USA)    | 1Gbit/s | Princeton University | [princeton.edu](https://www.princeton.edu/) | Up to date
+[mirror.math.princeton.edu/pub/openindiana](https://mirror.math.princeton.edu/pub/openindiana) <br> [mirror.math.princeton.edu/pub/openindiana-iso](https://mirror.math.princeton.edu/pub/openindiana-iso/) | HTTPS/RSYNC | Princeton, NJ (USA)    | 1Gbit/s | Princeton University | [princeton.edu](https://www.princeton.edu/) | Up to date
 [openindiana.teambelgium.net/oi/](https://openindiana.teambelgium.net/oi/)                         | HTTPS/RSYNC | Leuven, Belgium        | 500Mbit/s      | Team Belgium                     | [openindiana.teambelgium.net](https://openindiana.teambelgium.net/) | Up to date
-[ftp.gtlib.gatech.edu/pub/OpenIndiana](http://ftp.gtlib.gatech.edu/pub/OpenIndiana/)  | HTTP/FTP  | Atlanta, GA (USA)   | 1Gbit/s      | Georgia Institute of Technology         | [gatech.edu](https://www.gatech.edu/)                     | Last updated 2021
+[ftp.gtlib.gatech.edu/pub/OpenIndiana](http://ftp.gtlib.gatech.edu/pub/OpenIndiana/)  | HTTP/FTP/RSYNC  | Atlanta, GA (USA)   | 1Gbit/s      | Georgia Institute of Technology         | [gatech.edu](https://www.gatech.edu/)                     | Last updated 2021