v0.2.0 Bump Version

Author: landhb

README.md

@@ -9,7 +9,7 @@ To use `linux-keyutils`, first add this to your `Cargo.toml`:
 
 ```toml
 [dependencies]
-linux-keyutils = "0.1"
+linux-keyutils = "0.2"
 ```
 
 For more information please view the full [documentation](https://docs.rs/linux-keyutils). There is also a small example program in the [examples directory](examples/keyctl.rs).