Specify Scala 2 in if snippet

aresen · julienrf · web-flow · commit cbc6d00889bf · 2022-01-03T08:41:33.000-05:00
Co-authored-by: Julien Richard-Foy &lt;julien@richard-foy.fr&gt;
diff --git a/_overviews/scala3-book/taste-control-structures.md b/_overviews/scala3-book/taste-control-structures.md
@@ -48,6 +48,7 @@ As you’ll see throughout this book, _all_ Scala control structures can be used
 The `if`/`else` control struture in Scala 2 was constructed differently, with parentheses required and curly brackets instead of the keyword `then`.
 
 ```scala
+// Scala 2 syntax
 if (test1) {
     doX()
 } else if (test2) {
