Merge pull request #2795 from joaquinelio/patch-5

typo

Author: iliakan

1-js/02-first-steps/16-function-expressions/article.md

@@ -34,7 +34,7 @@ In more advanced situations, that we'll come across later, a function may be cre
 
 ## Function is a value
 
-Let's reiterate: no matter how the function is created, a function is a value. Both examples above store a function is `sayHi` variable.
+Let's reiterate: no matter how the function is created, a function is a value. Both examples above store a function in the `sayHi` variable.
 
 We can even print out that value using `alert`: