fix typo on contributor doc README

Author: Qianqianye

contributor_docs/README.md

@@ -15,7 +15,7 @@ We are prioritizing work that expands access (inclusion and accessibility) to p5
 The overarching p5.js project includes some repositories other than this one:
 
 - **[p5.js](https://github.com/processing/p5.js)**: This repository contains the source code for the p5.js library. The [user-facing p5.js reference manual](https://p5js.org/reference/) is also generated from the [JSDoc](https://jsdoc.app/) comments included in this source code. It is maintained by [Qianqian Ye](https://github.com/qianqianye) and a group of [stewards](https://github.com/processing/p5.js#stewards).
-- **[p5.js-website](https://github.com/processing/p5.js-website)**: This repository contains most of the code for the [p5.js website](http://p5js.org), with the exception of the reference manual. It is maintained by [Qianqian Ye](https://github.com/qianqianye), [Kenneth Lim](https://github.com/limzykenneth), and and a group of [stewards](https://github.com/processing/p5.js-website#stewards).
+- **[p5.js-website](https://github.com/processing/p5.js-website)**: This repository contains most of the code for the [p5.js website](http://p5js.org), with the exception of the reference manual. It is maintained by [Qianqian Ye](https://github.com/qianqianye), [Kenneth Lim](https://github.com/limzykenneth), and a group of [stewards](https://github.com/processing/p5.js-website#stewards).
 - **[p5.js-sound](https://github.com/processing/p5.js-sound)**: This repository contains the p5.sound.js library. It is maintained by [Jason Sigal](https://github.com/therewasaguy).
 - **[p5.js-web-editor](https://github.com/processing/p5.js-web-editor)**: This repository contains the source code for the [p5.js web editor](https://editor.p5js.org). It is maintained by [Cassie Tarakajian](https://github.com/catarak). Note that the older [p5.js editor](https://github.com/processing/p5.js-editor) is now deprecated.