Update links from contributor_docs folder within p5.js repo

Author: Qianqianye

src/content/contributor-docs/en/access.mdx

@@ -8,7 +8,7 @@ description: |
 
 
 
-At the [2019 Contributors Conference](https://p5js.org/community/contributors-conference-2019.html), p5.js made the commitment to only add new features that increase access (inclusion and accessibility). We will not accept feature requests that don't support these efforts. We commit to the work of acknowledging, dismantling, and preventing barriers. This means considering intersecting[^1] experiences of diversity that can impact access and participation. These include alignments of gender, race, ethnicity, sexuality, language, location, et cetera. We center the needs of marginalized groups over the continued comfort of those privileged within the p5.js community. We are collectively exploring the meaning of access. We are learning how to practice and teach access. We choose to think of access through expansive, intersectional, and coalitionary frameworks. This commitment is part of the core values of p5.js outlined in our [Community Statement](https://p5js.org/about/#community-statement).
+At the [2019 Contributors Conference](https://p5js.org/events/contributors-conference-2019/), p5.js made the commitment to only add new features that increase access (inclusion and accessibility). We will not accept feature requests that don't support these efforts. We commit to the work of acknowledging, dismantling, and preventing barriers. This means considering intersecting[^1] experiences of diversity that can impact access and participation. These include alignments of gender, race, ethnicity, sexuality, language, location, et cetera. We center the needs of marginalized groups over the continued comfort of those privileged within the p5.js community. We are collectively exploring the meaning of access. We are learning how to practice and teach access. We choose to think of access through expansive, intersectional, and coalitionary frameworks. This commitment is part of the core values of p5.js outlined in our [Community Statement](https://p5js.org/about/#community-statement).
 
 ## Kinds of access
 

src/content/contributor-docs/en/web_accessibility.mdx

@@ -13,7 +13,7 @@ This document describes the structure of p5.js’ web accessibility features for
 
 If you want to make your sketches [screen reader](https://en.wikipedia.org/wiki/Screen_reader/)-accessible, visit the How to label your p5.js code tutorial.
 
-If you want to use p5.js with a screen reader, visit the [Using p5.js with a Screen Reader tutorial](https://p5js.org/learn/p5-screen-reader.html).
+If you want to use p5.js with a screen reader, visit the [Using p5.js with a Screen Reader tutorial](https://p5js.org/tutorials/p5js-with-screen-reader/).
 
 The canvas HTML element is a grid of pixels. It doesn’t provide any screen reader-accessible information about the shapes drawn on it. p5.js has several functions that make the canvas more accessible to screen readers by providing [fallback text](https://developer.mozilla.org/en-US/docs/Web/API/Canvas_API/Tutorial/Basic_usage#accessible_content) descriptions. I’ll describe some of the details around the implementation of these functions.