Update URLs

Author: eldruin

Cargo.toml

@@ -4,8 +4,8 @@ version = "0.2.0"
 authors = ["Rust Embedded WG Linux Team <[email protected]>",
            "Paul Osborne <[email protected]>"]
 license = "MIT/Apache-2.0"
-homepage = "https://github.com/posborne/rust-sysfs-pwm"
-documentation = "https://posborne.github.io/rust-sysfs-pwm"
+homepage = "https://github.com/rust-embedded/rust-sysfs-pwm"
+documentation = "https://docs.rs/rust-sysfs-pwm"
 description = """
 Provides access to the Linux sysfs interfaces to PWMs.
 Via this crate you can export, unexport, and control PWM pins for