Fix broken links

website/problems/JupyterPythonNumpy.md

@@ -4,5 +4,5 @@ This assignment consists of LinkedIn Learning courses that that cover Jupyter, p
 
 1. Go to your user dashboard on GitHub and create a new repository called `Course-Certificates`. Experiment with the features within that repository to familiarize yourself with them.
 1. In the `README.md` file in the repository, explain that the purpose of this repository is to store your LinkedIn Learning Certificates. Make a numbered list of certificates, with the name of the course as the title, linked to the file containing the certificate. [See the example repository.](https://github.com/McMasterQM/Course-Certificates) You can look at the sequence of revisions in the example repository to learn more about how to construct the `README.md` file.
-1. Upload the certificates for [using Jupyter notebooks](../problems/Jupyter.md), [Python programming](../problems/python.md), and [using Numpy](../problems/numpy.md).
+1. Upload the certificates for [using Jupyter notebooks](problems/Jupyter.md), [Python programming](problems/python.md), and [using Numpy](problems/numpy.md).
 1. You should consider completing [additional activities](../problems/programming.md).