Remove json.rs links

Author: maciejhirsz

README.md

@@ -9,7 +9,7 @@
 Parse and serialize [JSON](http://json.org/) with ease.
 
 **[Changelog](https://github.com/maciejhirsz/json-rust/releases) -**
-**[Complete Documentation](http://json.rs/doc/json/) -**
+**[Complete Documentation](https://docs.rs/json/) -**
 **[Cargo](https://crates.io/crates/json) -**
 **[Repository](https://github.com/maciejhirsz/json-rust)**
 
@@ -119,7 +119,7 @@ crate. It is definitely one of them now.
 
 While this crate doesn't provide a way to parse JSON to native Rust structs, it does a
 lot to optimize its performance for DOM parsing, stringifying and manipulation. It does
-[very well in benchmarks](http://json.rs/), in some cases it
+[very well in benchmarks](https://github.com/serde-rs/json-benchmark), in some cases it
 can even outperform parsing to structs.
 
 This crate implements the standard according to the [