Fix typo (#248)

Author: Rolanddoda

src/guide/writing-guide.md

@@ -92,7 +92,7 @@ Under no circumstances should 2 alerts be used next to one another, it's a sign
 
 ### Contributing
 
-We appreciate small, focused PRs. If you'd like to make an extremely large change, please communicate with team members prior to a pull request. Here's a [writeup that details why this is so critical](https://www.netlify.com/blog/2020/03/31/how-to-scope-down-prs/) for us to work well on this team. Please understand that though we always appreciate contributions, ultamitely we have to prioritize what works best for the project as a whole.
+We appreciate small, focused PRs. If you'd like to make an extremely large change, please communicate with team members prior to a pull request. Here's a [writeup that details why this is so critical](https://www.netlify.com/blog/2020/03/31/how-to-scope-down-prs/) for us to work well on this team. Please understand that though we always appreciate contributions, ultimately we have to prioritize what works best for the project as a whole.
 
 ## Resources