Updated doc links

Author: mitsuhiko

book/src/error-errorkind.md

@@ -140,4 +140,4 @@ case, you should not use this pattern.
 
 [use-error]: ./use-error.html
 [custom-fail]: ./custom-fail.html
-[context-api]: https://boats.gitlab.io/failure/doc/failure/struct.Context.html
+[context-api]: https://docs.rs/failure/latest/failure/struct.Context.html

book/src/error-msg.md

@@ -55,5 +55,5 @@ to the users.
 
 [custom-fail]: ./custom-fail.html
 [use-error]: ./use-error.html
-[err-msg-api]: https://boats.gitlab.io/failure/doc/failure/fn.err_msg.html
-[format-err-api]: https://boats.gitlab.io/failure/doc/failure/macro.format_err.html
+[err-msg-api]: https://docs.rs/failure/latest/failure/fn.err_msg.html
+[format-err-api]: https://docs.rs/failure/latest/failure/macro.format_err.html

book/src/fail.md

@@ -147,6 +147,6 @@ The biggest hole in our backwards compatibility story is that you cannot
 implement `std::error::Error` and also override the backtrace and cause methods
 on `Fail`. We intend to enable this with specialization when it becomes stable.
 
-[derive-docs]: https://boats.gitlab.io/failure/derive-fail.html
+[derive-docs]: ./derive-fail.html
 [stderror]: https://doc.rust-lang.org/std/error/trait.Error.html
 [backtrace-crate]: http://alexcrichton.com/backtrace-rs

book/src/intro.md

@@ -6,7 +6,7 @@ creating and managing errors in Rust. Additional documentation is found here:
 * [API documentation][api]
 * [failure source code][repo]
 
-[api]: https://boats.gitlab.io/failure/doc/failure
+[api]: https://docs.rs/failure
 [repo]: https://github.com/rust-lang-nursery/failure
 
 ```rust