Updated content file

eleev · eleev · commit c5a41ec73225 · 2018-08-13T10:11:00.000+03:00
diff --git a/Data Structures.playground/contents.xcplayground b/Data Structures.playground/contents.xcplayground
@@ -12,5 +12,6 @@
         <page name='PriorityQueue'/>
         <page name='BinaryTree'/>
         <page name='BinarySearchTree'/>
+        <page name='Red-Black Tree'/>
     </pages>
 </playground>
