Log into your Google Tag Manager https://tagmanager.google.com/ and select the container you want to add Canny Armadillo to
Go to Tags and click the "New" button
For "Tag Configuration" select "Custom HTML" and add your Canny Armadillo code. You can find your tracking script on the getting started page on your Canny Armadillo Dashboard
Add a "Trigger" of "All Page Views"
Publish your changes.