[libgpiod][PATCH 2/2] bindings: rust: mention the libgpiod crate from libgpiod-sys

[Erik Schilling <erik.schilling@xxxxxxxxxx>]

If people view this README.md on crates.io [1], they likely want to
use the safe wrapper instead. So this hints the existence of that other
crate.

[1] https://crates.io/crates/libgpiod-sys
---
 bindings/rust/libgpiod-sys/README.md | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/bindings/rust/libgpiod-sys/README.md b/bindings/rust/libgpiod-sys/README.md
index f9db496..05acd9e 100644
--- a/bindings/rust/libgpiod-sys/README.md
+++ b/bindings/rust/libgpiod-sys/README.md
@@ -8,6 +8,9 @@ SPDX-FileCopyrightText: 2022 Viresh Kumar <viresh.kumar@xxxxxxxxxx>
 Automatically generated Rust FFI bindings via
 	[bindgen](https://github.com/rust-lang/rust-bindgen).
 
+Typically, you will want to use the safe `libgpiod` wrapper crate instead of
+these unsafe wrappers around the C lib.
+
 ## Build requirements
 
 A compatible variant of the C library needs to detectable using pkg-config.

-- 
2.41.0