Merge pull request #1567 from 0x54321/patch-1

Update match-expressions.md

Author: Philippus

_overviews/scala-book/match-expressions.md

@@ -202,7 +202,7 @@ count match {
 }
 ```
 
-Here’s a variation of that example that uses parentheses
+Here’s a variation of that example that uses curly braces:
 
 ```scala
 count match {