point some of the sub-docs (aws, azure, windows) to node12

Author: Dave Conway-Jones

docs/getting-started/aws.md

@@ -59,7 +59,7 @@ You will be asked if you wish to use ssh. If you do, please ensure you have ssh
         "node": "10.x"
     },
     "dependencies": {
-        "node-red": "0.20.x",
+        "node-red": "1.1.x",
         "aws-sdk": "2.4.x",
         "node-red-contrib-storage-s3": "0.0.x",
         "when": "3.7.x"
@@ -135,7 +135,7 @@ Follow the AWS guide for [connecting to your instance](http://docs.aws.amazon.co
 
 Once logged in you need to install node.js and Node-RED
 
-       curl -sL https://deb.nodesource.com/setup_10.x | sudo -E bash -
+       curl -sL https://deb.nodesource.com/setup_12.x | sudo -E bash -
        sudo apt-get install -y nodejs build-essential
        sudo npm install -g --unsafe-perm node-red
 

docs/getting-started/azure.md

@@ -47,7 +47,7 @@ previous stage.
 
 Once logged in you need to install node.js and Node-RED
 
-       curl -sL https://deb.nodesource.com/setup_10.x | sudo -E bash -
+       curl -sL https://deb.nodesource.com/setup_12.x | sudo -E bash -
        sudo apt-get install -y nodejs build-essential
        sudo npm install -g --unsafe-perm node-red
 

docs/getting-started/windows.md

@@ -17,7 +17,7 @@ This page gives specific instructions on setting up Node-RED in a Microsoft Wind
 
 #### 1. Install Node.js
 
-Download the latest 10.x LTS version of Node.js from the official [Node.js home page](https://nodejs.org/en/). It will offer you the best version for your system.
+Download the latest 12.x LTS version of Node.js from the official [Node.js home page](https://nodejs.org/en/). It will offer you the best version for your system.
 
 Run the downloaded MSI file.  Installing Node.js requires local administrator rights; if you are not a local
 administrator, you will be prompted for an administrator password on install.  Accept the defaults when installing.  After installation completes, close any open command prompts and re-open to ensure new environment variables
@@ -31,8 +31,8 @@ Using cmd: `node --version && npm --version`
 
 You should receive back output that looks similar to:
 
-    v10.16.3
-    6.11.3
+    v12.15.0
+    6.14.5
 
 #### 2. Install Node-RED