relocate: update links to point to new rust-embedded org

Signed-off-by: Paul Osborne <[email protected]>

Author: posborne

Cargo.toml

@@ -4,9 +4,9 @@ name = "i2cdev"
 version = "0.2.0"
 authors = ["Paul Osborne <[email protected]>"]
 license = "MIT/Apache-2.0"
-repository = "https://github.com/posborne/rust-i2cdev"
-homepage = "https://github.com/posborne/rust-i2cdev"
-documentation = "http://posborne.github.io/rust-i2cdev"
+repository = "https://github.com/rust-embedded/rust-i2cdev"
+homepage = "https://github.com/rust-embedded/rust-i2cdev"
+documentation = "http://rust-embedded.github.io/rust-i2cdev"
 description = """
 Provides API for safe access to Linux i2c device interface.