Clarify the arrow function anti-example and document addon state - #9194

Clarify the arrow function anti-example and document addon state#9194

MannXo wants to merge 2 commits into

processing:mainprocessing/p5.js:mainfrom

MannXo:fix/9171-creating-libraries-docMannXo/p5.js:fix/9171-creating-libraries-docCopy head branch name to clipboard