Remove stray smart apostrophe

Author: ahpook

_articles/how-to-contribute.md

@@ -48,7 +48,7 @@ By definition, all of your open source work is public, which means you get free
 
 Open source offers opportunities to practice leadership and management skills, such as resolving conflicts, organizing teams of people, and prioritizing work.
 
-### It’s empowering to make changes, even small ones
+### It's empowering to make changes, even small ones
 
 You don't have to become a lifelong contributor to enjoy participating in open source. Have you ever seen a typo on a website, and wished someone would fix it? On an open source project, you can do just that. Open source helps people feel agency over their lives and how they experience the world, and that in itself is gratifying.