Update links to point at the rngs repo (#106)

Fixes #105.

Author: dhardy

rand_chacha/Cargo.toml

@@ -4,7 +4,7 @@ version = "0.10.0"
 authors = ["The Rand Project Developers", "The Rust Project Developers", "The CryptoCorrosion Contributors"]
 license = "MIT OR Apache-2.0"
 readme = "README.md"
-repository = "https://github.com/rust-random/rand"
+repository = "https://github.com/rust-random/rngs"
 documentation = "https://docs.rs/rand_chacha"
 homepage = "https://rust-random.github.io/book"
 description = """

rand_chacha/README.md

@@ -1,6 +1,6 @@
 # rand_chacha
 
-[![Test Status](https://github.com/rust-random/rand/actions/workflows/test.yml/badge.svg?event=push)](https://github.com/rust-random/rand/actions)
+[![Test Status](https://github.com/rust-random/rngs/actions/workflows/test.yml/badge.svg?event=push)](https://github.com/rust-random/rngs/actions)
 [![Latest version](https://img.shields.io/crates/v/rand_chacha.svg)](https://crates.io/crates/rand_chacha)
 [![Book](https://img.shields.io/badge/book-master-yellow.svg)](https://rust-random.github.io/book/)
 [![API](https://docs.rs/rand_chacha/badge.svg)](https://docs.rs/rand_chacha)
@@ -22,7 +22,7 @@ the [`c2-chacha`](https://crates.io/crates/c2-chacha) crate.
 Links:
 
 -   [API documentation (docs.rs)](https://docs.rs/rand_chacha)
--   [Changelog](https://github.com/rust-random/rand/blob/master/rand_chacha/CHANGELOG.md)
+-   [Changelog](https://github.com/rust-random/rngs/blob/master/rand_chacha/CHANGELOG.md)
 
 [rand]: https://crates.io/crates/rand
 [^1]: D. J. Bernstein, [*ChaCha, a variant of Salsa20*](

rand_pcg/README.md

@@ -1,6 +1,6 @@
 # rand_pcg
 
-[![Test Status](https://github.com/rust-random/rand/actions/workflows/test.yml/badge.svg?event=push)](https://github.com/rust-random/rand/actions)
+[![Test Status](https://github.com/rust-random/rngs/actions/workflows/test.yml/badge.svg?event=push)](https://github.com/rust-random/rngs/actions)
 [![Latest version](https://img.shields.io/crates/v/rand_pcg.svg)](https://crates.io/crates/rand_pcg)
 [![Book](https://img.shields.io/badge/book-master-yellow.svg)](https://rust-random.github.io/book/)
 [![API](https://docs.rs/rand_pcg/badge.svg)](https://docs.rs/rand_pcg)
@@ -20,7 +20,7 @@ part of the [Rand project](https://github.com/rust-random/rand).
 Links:
 
 -   [API documentation (docs.rs)](https://docs.rs/rand_pcg)
--   [Changelog](https://github.com/rust-random/rand/blob/master/rand_pcg/CHANGELOG.md)
+-   [Changelog](https://github.com/rust-random/rngs/blob/master/rand_pcg/CHANGELOG.md)
 
 
 ## Crate Features