Drop -rs suffix from README

Author: Thomasdezeeuw

README.md

@@ -1,6 +1,8 @@
-# socket2-rs
+# Socket2
 
-[Documentation](https://docs.rs/socket2)
+See the [API documentation] for more.
+
+[API documentation]: https://docs.rs/socket2
 
 # License
 
@@ -17,4 +19,4 @@ at your option.
 
 Unless you explicitly state otherwise, any contribution intentionally submitted
 for inclusion in this project by you, as defined in the Apache-2.0 license,
-  shall be dual licensed as above, without any additional terms or conditions.
+shall be dual licensed as above, without any additional terms or conditions.