Merge pull request #58 from frewsxcv/patch-1

In 1.0 Release post, link to 1.0.0 version of book instead of beta

Author: steveklabnik

_posts/2015-05-15-Rust-1.0.md

@@ -320,7 +320,7 @@ whom contributed changes since our previous release (the
 [cargo]: http://blog.rust-lang.org/2014/11/20/Cargo.html
 [relnotes]: https://github.com/rust-lang/rust/blob/master/RELEASES.md#version-100-may-2015
 [caveats]: https://github.com/rust-lang/rfcs/pull/1122
-[book]: http://doc.rust-lang.org/1.0.0-beta.5/book/getting-started.html
+[book]: http://doc.rust-lang.org/1.0.0/book/getting-started.html
 [ffi]: http://blog.rust-lang.org/2015/04/24/Rust-Once-Run-Everywhere.html
 [AUTHORS]: https://github.com/rust-lang/rust/blob/master/AUTHORS.txt
 [23606]: https://github.com/rust-lang/rust/pull/23606/