Update crate authors

Author: urschrei

Cargo.toml

@@ -2,7 +2,7 @@
 name = "geocoding"
 description = "Geocoding library for Rust"
 version = "0.3.1"
-authors = ["Stephan Hügel <[email protected]>", "Blake Grotewold <[email protected]>"]
+authors = ["The Georust Developers <[email protected]>"]
 license = "MIT OR Apache-2.0"
 repository = "https://github.com/georust/geocoding"
 keywords = ["gecoding", "geo", "gis", "geospatial"]