minor typo fix

Author: grimreaper

RELEASES.md

@@ -3371,7 +3371,7 @@ Version 1.0.0-alpha (2015-01-09)
       platforms.
     * Rust comes with rust-gdb and rust-lldb scripts that launch their
       respective debuggers with Rust-appropriate pretty-printing.
-    * The Windows installation of Rust is distributed with the the
+    * The Windows installation of Rust is distributed with the
       MinGW components currently required to link binaries on that
       platform.