change Raspbian to Raspberry Pi OS

Author: Dave Conway-Jones

docs/faq/interacting-with-pi-gpio.md

@@ -13,7 +13,7 @@ This module is preinstalled with Node-RED when using
 our install script. It provides a simple way to monitor and control the GPIO pins.
 
 <div class="doc-callout">
-Raspbian comes preconfigured for this node to work. If you are running a different
+Raspberry Pi OS comes preconfigured for this node to work. If you are running a different
 distribution, such as Ubuntu, some additional install steps may be needed. The
 node's README <a href="https://github.com/node-red/node-red-nodes/tree/master/hardware/PiGpio#install">has the details</a>.
 </div>

docs/faq/starting-node-red-on-boot.md

@@ -17,7 +17,7 @@ This script installs Node-RED as a [systemd](https://wiki.debian.org/systemd) se
 For more information, read the [Running on Raspberry Pi](/docs/getting-started/raspberrypi#autostart-on-boot)
 guide.
 
-If you are not using Raspbian, you may need to edit the service file to suit
+If you are not using Raspberry Pi OS, you may need to edit the service file to suit
 your local user id and environment. Details for how to do that are available
 [here](/docs/faq/customising-systemd-on-pi).
 

docs/getting-started/raspberrypi.md

@@ -10,7 +10,7 @@ redirect_from:
 
 ### Prerequisites
 
-If you are using Raspbian, Buster is the currently supported version.
+If you are using Raspberry Pi OS, Buster is the currently supported version.
 
 ### Installing and Upgrading Node-RED
 
@@ -50,9 +50,9 @@ This script will:
 <div style="float: left; margin-right: 10px;margin-bottom: 40px;">
 <img src="/images/logos/raspberrypi.svg" height="30">
 </div>
-Node-RED has also been packaged for the Raspbian repositories and appears in their
+Node-RED has also been packaged for the Raspberry Pi OS repositories and appears in their
 list of 'Recommended Software'. This allows it to be installed using
-<code>apt-get install nodered</code> and includes the Raspbian-packaged version
+<code>apt-get install nodered</code> and includes the Raspberry Pi OS-packaged version
 of Node.js, but <em>does not</em> include <code>npm</code>.
 <p>While using these packages is convenient at first, we <b>strongly recommend</b>
 using the install script above instead.</p>
@@ -89,7 +89,7 @@ The following commands are provided to work with the service:
  - `node-red-restart` - this stops and restarts the Node-RED service
  - `node-red-log` - this displays the log output of the service
 
-You can also start the Node-RED service on the Raspbian Desktop by selecting
+You can also start the Node-RED service on the Raspberry Pi OS Desktop by selecting
 the `Menu -> Programming -> Node-RED` menu option.
 
 ### Autostart on boot