Incorrect link on Chart.js Module page.

[erictuvesson]

Documentation Bug report

Describe the bug

Incorrect link on Chart.js Module page.

To Reproduce

Steps to reproduce the behavior, please provide code snippets or a repository:

1. Go to https://docs.noodl.net/2.9/library/modules/chartjs/nodes/pie/
2. Click on "Here" which links to https://docs.noodl.net/2.9/library/modules/chartjs/nodes/charts/pie

Expected behavior

A redirect to https://docs.noodl.net/2.9/library/modules/chartjs/charts/pie

Additional context

Incorrect: https://docs.noodl.net/2.9/library/modules/chartjs/nodes/charts/pie
Correct:   https://docs.noodl.net/2.9/library/modules/chartjs/charts/pie

The URL is relative, this is an issue when the URL has "/" at the end.
Where https://docs.noodl.net/2.9/library/modules/chartjs/nodes/pie works.