tour is available in Polish now

SethTisue · SethTisue · commit dca716f6f283 · 2017-02-09T09:32:47.000-08:00
diff --git a/tutorials/tour/tour-of-scala.md b/tutorials/tour/tour-of-scala.md
@@ -6,7 +6,7 @@ disqus: true
 
 tutorial: scala-tour
 num: 1
-languages: [ba, es, ko, pt-br]
+languages: [ba, es, ko, pt-br, pl]
 outof: 34
 next-page: basics
 ---
