Update documentation

README.md

@@ -4,7 +4,7 @@
 [![crates.io](https://meritbadge.herokuapp.com/rppal)](https://crates.io/crates/rppal)
 [![MIT licensed](https://img.shields.io/badge/license-MIT-blue.svg)](LICENSE)
 
-RPPAL is a Rust library that provides access to the Raspberry Pi GPIO peripheral through either `/dev/gpiomem` or `/dev/mem`. Support for additional peripherals, as well as useful helper functions, will be added in future updates. The library is compatible with the BCM2835, BCM2836 and BCM2837 SoCs.
+RPPAL is a Rust library that provides access to the Raspberry Pi GPIO peripheral through either `/dev/gpiomem` or `/dev/mem`. Support for additional peripherals, as well as useful helper functions, will be added in future updates. The library is compatible with the Raspberry Pi A, A+, B, B+, 2B, 3B, 3B+, Compute, Compute 3, Zero and Zero W.
 
 Backwards compatibility for minor revisions isn't guaranteed until the library reaches v1.0.0.
 
@@ -18,7 +18,7 @@ Add a dependency for `rppal` to your `Cargo.toml`.
 
 ```toml
 [dependencies]
-rppal = "0.2"
+rppal = "0.3"
 ```
 
 Link and import `rppal` from your crate root.