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@@ -20,3 +20,4 @@ The released book can be found on on https://teachbooks.io/manual. This page sho
 Some parts of this book are taken from other sources in the form of submodules (linked in the folder [book/external](book/external)). To contribute to those pages, contribute to the source repository directly with a fork and merge/pull request. If you intent to clone this book including its submodules, clone using: `git clone --recurse-submodules git@github.com:TeachBooks/manual.git`
 
 Happy book building!
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