Fixed broken autocomplete reference link for Issue #3196

[Serena20003]

Fixes #3196

Changes:

p5.js-web-editor/client/modules/IDE/components/show-hint.js line 286

• From ? `<a href="https://p5js.org/reference/#/p5/${ to ? `<a href="https://p5js.org/reference/p5/${

I have verified that this pull request:

• has no linting errors (npm run lint)
• has no test errors (npm run test)
• is from a uniquely-named feature branch and is up to date with the develop branch.
• is descriptively named and links to an issue number, i.e. Fixes #123

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[raclim]

This is great, thanks so much for your work on this!