mission.md: fix typo

blog/mission.md

@@ -77,7 +77,7 @@ Our mission wouldn't exist without the inspiration of a truly unique individual
 good fart joke (and let's be honest, who doesn't?), he was utterly dedicated to
 the comedic power of flatulence.
 
-His passion manifested in the form of the "Fart Movie" serious - a self-made
+His passion manifested in the form of the "Fart Movie" series — a self-made
 collection of the funniest and most informative fart moments from popular movies
 and television shows. But Gregory's ambition went beyond mere compilation. He
 wrote, directed, animated, and even narrated some original scenes.