vfio-bindings: Update README.md

* Remove the support of multiple Linux kernel versions;
* Remove the requirement of using "extern crate";

Signed-off-by: Bo Chen <[email protected]>

Author: likebreath

vfio-bindings/README.md

@@ -5,34 +5,16 @@
 The vfio-bindings crate is designed as rust FFI bindings to vfio
 generated using [bindgen](https://crates.io/crates/bindgen).
 
-Multiple Linux versions are supported through rust 'features'. For each
-supported Linux version, a feature is introduced.
-
-Currently supported features/Linux versions:
-- vfio-v5_0_0 contains the bindings for the Linux kernel version 5.0
+Currently the bindings are generated from Linux kernel version v6.6.0.
 
 ## Usage
 
 First, add the following to your Cargo.toml:
 ```toml
-vfio-bindings = "0.3"
-```
-Next, add this to your crate root:
-
-```rust
-extern crate vfio_bindings;
-```
-
-By default vfio-bindings will export a wrapper over the latest available kernel
-version it supported, but you can select a different version by specifying it in
-your Cargo.toml:
-```toml
-vfio-bindings = { version = "0.3", features = ["vfio-v5_0_0"]}
+vfio-bindings = "0.5"
 ```
 
-## Examples
-
-To use this bindings, you can do:
+Next, to use this bindings, you can do:
 ```rust
 use vfio_bindings::bindings::vfio::*;
 ```