Docs: Fix typos in documentation

contributor_docs/documentation_style_guide.md

@@ -4,7 +4,7 @@
 
 Hello! Welcome to the guidelines for writing p5.js documentation. This document is a remix of the following resources:
 
-- Ruby on Rails [API Documentation Guidlines](https://guides.rubyonrails.org/api_documentation_guidelines.html) (CC BY-SA 4.0)
+- Ruby on Rails [API Documentation Guidelines](https://guides.rubyonrails.org/api_documentation_guidelines.html) (CC BY-SA 4.0)
 - WordPress documentation guidelines for [accessibility](https://make.wordpress.org/docs/style-guide/general-guidelines/accessibility/) and [inclusivity](https://make.wordpress.org/docs/style-guide/general-guidelines/inclusivity/) (CC0)
 - Airbnb [JavaScript Style Guide](https://airbnb.io/javascript/) (MIT)
 

contributor_docs/project_wrapups/elginmclaren_gsoc_2018.md

@@ -30,7 +30,7 @@ hello.p5js.org is likely to be many users’ first introduction to p5.js (and po
 
 
 ## Challenges
-* Crowdsourcing the video content was fun and filled with delightful suprises; however, it was challenging to coordinate video-making tasks with community members over the summer (e.g. tight GSOC time constraints, people's summer vacations).
+* Crowdsourcing the video content was fun and filled with delightful surprises; however, it was challenging to coordinate video-making tasks with community members over the summer (e.g. tight GSOC time constraints, people's summer vacations).
 * Creating a dynamic, post-production greenscreen effect was more difficult than I imagined. Using seriously.js for the canvas background removal worked well; however, setting videos to a neutral background color in After Effects was difficult without a neutral background.
 * When incorporating browserify to pre-process my javascript, I missed one crucial line of code. This required tremendous digging to figure out why it wouldn't compile. It set me back several days, but I learned  a lot!