Update intro.md

Remove duplicative Learn how to publish your package to PyPI in this tutorial

Author: Tyler-Bonnell

tutorials/intro.md

@@ -309,8 +309,6 @@ publish it in a repository such as **PyPI** or **conda-forge**.
 
 Learn [how to publish your package to PyPI in this tutorial.](publish-pypi.md)
 
-You will learn [how to publish your package to PyPI in this tutorial.](publish-pypi)
-
 Then you can create a conda-forge recipe using the [Grayskull](https://github.com/conda/grayskull) tool. You can then submit this recipe to conda-forge.
 
 [You will learn more about the conda-forge publication process here.](publish-conda-forge.md)