docs: Update CONTRIBUTING.md with note on cargo-husky

CONTRIBUTING.md

@@ -44,7 +44,9 @@ If you want to help contribute by submitting a PR, by all means, I'm open! In re
 
 - I use both [clippy](https://github.com/rust-lang/rust-clippy) and [rustfmt](https://github.com/rust-lang/rustfmt) in development (with some settings, see [clippy.toml](./clippy.toml) and [rustfmt.toml](rustfmt.toml)). Note clippy must pass to for PRs to be accepted.
 
-  - You can check clippy using `cargo +nightly clippy`.
+  - You can check clippy using `cargo clippy`.
+
+  - I use [cargo-husky](https://github.com/rhysd/cargo-husky) to automatically run a clippy check on push. You can disable this in the `Cargo.toml` file if you find this annoying.
 
 - You may notice that I have fern and log as dependencies; this is mostly for easy debugging via the `debug!()` macro. It writes to the
   `debug.log` file that will automatically be created if you run in debug mode (so `cargo run`).