Update links to point to tutorial page

[muffinista]

Addresses processing/p5.js-website#527

Changes:

The link to the page about creating accessible labels is broken and this seems like the proper one.

Screenshots of the change:

PR Checklist

• npm run lint passes
• Inline documentation is included / updated
• Unit tests are included / updated

[welcome]

🎉 Thanks for opening this pull request! Please check out our contributing guidelines if you haven't already. And be sure to add yourself to the list of contributors on the readme page!

[perminder-17]

Thank you for taking on this task. When you run grunt yui:dev, it should start the reference website with the updated code and examples. However, I'm still encountering a broken link when I try to run it. Could you please verify the correct path?

Additionally, I'm unsure if we have the tutorial page included in the p5.js repository. If it’s missing, we might need to use absolute URLs, such as:

<a href="https://p5js.org/tutorials/writing-accessible-canvas-descriptions/">Writing accessible canvas descriptions</a>

[davepagurek]

I think the relative path from / technically will work once it gets merged and then parsed in the website repo, but I think as @perminder-17 suggests, an absolute path probably is the way to go here so that it's easier to test.

[muffinista]

Thanks very much for the feedback! I've switched this to an absolute link, and I properly built/tested locally, and I believe everything is working as expected.

[perminder-17]

I am really sorry for the delay in the review. LGTM, thanks for your work and your patience.