Merge pull request #8116 from AlzaAlzaki76/typos2

Fix misspellings in docs

Author: perminder-17

contributor_docs/project_wrapups/tanvi_gsoc_2018.md

@@ -46,4 +46,4 @@ GSoC'18 was an incredibly enriching experience. I'm happy to know that I was abl
 
 ## Acknowledgements
 
-I'd like to thank my mentor, [Alice Mira Chung](https://github.com/almchung) for her guidance, patience and support. I'd also like to thank Lauren McCarthy and others in the p5.js community who helped me successfuly close issues and guided me when I stumbled. Really grateful for having had this oppurtunity and such an encouraging environment.
+I'd like to thank my mentor, [Alice Mira Chung](https://github.com/almchung) for her guidance, patience and support. I'd also like to thank Lauren McCarthy and others in the p5.js community who helped me successfully close issues and guided me when I stumbled. Really grateful for having had this oppurtunity and such an encouraging environment.

contributor_docs/zh-Hans/README.md

@@ -40,7 +40,7 @@ p5.js 项目除了这个代码库外还包括了以下几个其他的代码库
 
 # GitHub Issue 流程
 
-* 我们使用 [GitHub issue](https://github.com/processing/p5.js/issues) 跟踪已知的错误和预期的新功能。[Issue lables](./issue_labels.md) 用于将问题分类，例如[适合初学者](https://github.com/processing/p5.js/labels/level%3Abeginner)的问题。
+* 我们使用 [GitHub issue](https://github.com/processing/p5.js/issues) 跟踪已知的错误和预期的新功能。[Issue labels](./issue_labels.md) 用于将问题分类，例如[适合初学者](https://github.com/processing/p5.js/labels/level%3Abeginner)的问题。
 
 * 如果您想开始处理现有问题，请对你打算探查的问题发表评论，以便其他贡献者知道该问题正在处理中并可以提供帮助。
 

lib/addons/p5.sound.js

@@ -10979,7 +10979,7 @@ function gain_createClass(Constructor, protoProps, staticProps) { if (protoProps
  *  @example
  *  <div><code>
  *
- *  // load two soundfile and crossfade beetween them
+ *  // load two soundfile and crossfade between them
  *  let sound1,sound2;
  *  let sound1Gain, sound2Gain, mixGain;
  *  function preload(){