Update readme.md

Author: CESARDELATORRE

deploy/az/readme.md

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 # Deploying resources using create-resources script
 
 The `create-resources` script is a basic script to allow easy deployment of one ARM template in one resource group. You can deploy to an existing resource group or to create one.
 
+NOTE: Alternatively, you can also use the createresources.sh bash script which was created as a second option, convenient if you are using a Mac or Linux machine, or simply, bash on Windows, instead of CMD/CommandPrompt in Windows.
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 ## Deploying to a existing resource group
 
 Just type `create-resources path-to-arm-template resourcegroup`. Called this way the script will: