Merge pull request #225 from RalfJung/gh-pages

doc.creates.io does not support https

Author: ashleygwilliams

_posts/2018-01-04-Rust-1.23.md

@@ -51,7 +51,7 @@ they've found.
 
 In other documentation news, historically, Cargo's docs have been a bit strange.
 Rather than being on [doc.rust-lang.org](https://doc.rust-lang.org),
-they've been at [doc.crates.io](https://doc.crates.io).
+they've been at [doc.crates.io](http://doc.crates.io).
 With this release, [that's changing](https://github.com/rust-lang/rust/pull/45692).
 You can now find Cargo's docs at [doc.rust-lang.org/cargo](https://doc.rust-lang.org/cargo).
 Additionally, they've been converted to the same format as our other long-form documentation.