Fix: Fixed the broken link in "contributor_docs/fes_contribution_guide.md" file

[poswalsameer]

PR Description:
This PR solves the issue of the broken link which is present in contributor_docs/fes_contribution_guide.md. Now, it is getting redirected to the right link.

Resolves #7227

Changes:
This PR changes only a single file fes_contribution_guide.md which can be found inside the folder contributor_docs.

Screenshots of the change:
Screenshot not required.

PR Checklist

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

[perminder-17]

Thanks for working at this issue. Looks good to me. I was little confused with the link because it was talking specifically about "Friendly Error perfomance test" and the link of the file you added was redirecting to the whole documentation of it.

But since we used the same link here https://github.com/processing/p5.js/wiki/Optimizing-p5.js-Code-for-Performance#p5-performance-tips , I think it's good to use the same link you currently added. So thanks:)

[Qianqianye]

Thanks @poswalsameer and @perminder-17!
Hi @limzykenneth, do you have any thoughts on where the 'Friendly Error performance test' link is supposed to go?

[limzykenneth]

I think we can leave out that line entirely as the following info is already providing actionable information.

[limzykenneth]

Suggested change

	By default, FES is enabled for p5.js and disabled in `p5.min.js` to prevent FES functions from slowing down the process. The error-checking system can significantly slow down your code (up to \~10x in some cases). See the [Friendly Error performance test](https://github.com/processing/p5.js/blob/main/contributor_docs/friendly_error_system.md).
	By default, FES is enabled for p5.js and disabled in `p5.min.js` to prevent FES functions from slowing down the process. The error-checking system can significantly slow down your code (up to \~10x in some cases).

[perminder-17]

Makes sense. Thanks