Added a README file to explain the purpose of this repository.

README.md

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+# Blender Add-on Packaging Example
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+This repository and (more importantly), its commit history illustrates the steps necessary to convert a Blender add-on from being a single-file Python script into a multi-file add-on in a basic folder structure.
+
+The original add-on code was provided by Blender itself, shipped as a Python template. From Blender 3.4, that add-on is available by going to the Text Editor and navigating to Templates > Python > Addon Add Object.
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+A more detailed description of this process can be found on the [Orange Turbine blog](https://orangeturbine.com/posts/how-to-convert-your-one-file-blender-add-on-to-an-add-on-package).