Merge pull request basarat#484 from paulolramos/patch-2

Update generics.md

Author: basarat

docs/types/generics.md

@@ -42,7 +42,7 @@ One solution (and in fact the only one in languages that don't support generics)
 ```ts
 class QueueNumber extends Queue {
  push(item: number) { super.push(item); }
- pop(): number { returnthis.data.shift(); }
+ pop(): number { return this.data.shift(); }
 }
 
 const queue = new QueueNumber();