Fix broken p5.* reference links in reference pages

[rakesh2OO5]

This PR normalizes malformed #/p5.* links in reference pages by rewriting them to /reference/p5/{type}/ at render time.

The fix applies to both Returns and Parameter descriptions, ensuring p5.Element, p5.Vector, and similar types route correctly across all DOM reference pages.

Tested locally on createDiv() .
Closes #1120.

[ksen0]

Thanks for the patience. Will merge. Tested with:

• Original problem: Create div has this URL: https://p5js.org/reference/p5/createDiv/
  The link to the p5.Element is this: https://p5js.org/reference/p5/createDiv/#/p5.Element which does nothing but scroll elsewhere in the same page.
• Sound part of the references: http://localhost:4321/reference/p5.Envelope and http://localhost:4321/reference/p5.Envelope/releaseTime/