Improve Accessibility Guidance for describe() Usage

contributor_docs/contributing_to_the_p5js_reference.md

@@ -308,7 +308,11 @@ Finally, for every example you add, you are required to use the p5.js function `
 * </div>
 ```
 
-For more on `describe()` visit the [web accessibility contributor documentation](./web_accessibility/#describe).
+
+For more on writing effective `describe()` calls:
+- See the [Web Accessibility Contributor Doc](./web_accessibility.md#user-generated-accessible-canvas-descriptions) for technical details and examples.
+- See the [Writing Accessible Canvas Descriptions tutorial](https://p5js.org/tutorials/writing-accessible-canvas-descriptions/) for best practices and rationale.
+- See the [Documentation Style Guide section on describe()](./documentation_style_guide.md#canvas-accessibility-descriptions-describe) for Do/Don’t examples and summary guidance.
 
 With all the above you should have most of the tools needed to write and edit p5.js reference comments. However, there are a few more specialized usage of JSDoc style reference comments that you may come across in p5.js. These are situationally useful and not something that you need often.