docs(README): optimize desc of crate

Author: cxw620

README.md

@@ -6,8 +6,8 @@
 
 This repository hosts both:
 
-  * [ktls](./ktls): higher-level, safe wrappers over kTLS
-  * [ktls-sys](./ktls-sys): the raw system interface for kTLS on Linux
+  * [ktls](./ktls): high-level APIs for configuring kTLS (kernel TLS offload) on top of [rustls].
+  * [ktls-sys](./ktls-sys): the raw system interface for kTLS on Linux (deprecated).
 
 ## License
 

ktls/README.md

@@ -4,15 +4,16 @@
 [![Coverage Status (codecov.io)](https://codecov.io/gh/rustls/ktls/branch/main/graph/badge.svg)](https://codecov.io/gh/rustls/ktls/)
 [![License: MIT OR Apache-2.0](https://img.shields.io/badge/license-MIT%20OR%20Apache--2.0-blue.svg)](LICENSE-MIT)
 
-# ktls
+# `ktls` - Kernel TLS offload (kTLS) support built on top of [rustls].
 
-Configures kTLS ([kernel TLS
-offload](https://www.kernel.org/doc/html/latest/networking/tls-offload.html))
-for any type that implements `AsRawFd`, given a rustls `ServerConnection`.
+This crate provides high-level APIs for configuring [kernel TLS offload] (kTLS).
 
 ## License
 
 This project is primarily distributed under the terms of both the MIT license
 and the Apache License (Version 2.0).
 
 See [LICENSE-APACHE](LICENSE-APACHE) and [LICENSE-MIT](LICENSE-MIT) for details.
+
+[kernel TLS offload]: https://www.kernel.org/doc/html/latest/networking/tls-offload.html
+[rustls]: https://docs.rs/rustls/latest/rustls/kernel/index.html