Rollup merge of rust-lang#25287 - petehunt:patch-2, r=steveklabnik

Author: Manishearth

src/doc/trpl/references-and-borrowing.md

@@ -6,7 +6,7 @@ become quite acquainted. Ownership is how Rust achieves its largest goal,
 memory safety. There are a few distinct concepts, each with its own
 chapter:
 
-* [ownership][ownership], ownership, the key concept
+* [ownership][ownership], the key concept
 * borrowing, which you’re reading now
 * [lifetimes][lifetimes], an advanced concept of borrowing
 
@@ -368,4 +368,4 @@ statement 1 at 3:14
     
     println!("{}", y);
 }
-```
+```