cargo-clippy: add page (#4316)

pages/common/cargo-clippy.md

@@ -0,0 +1,32 @@
+# cargo clippy
+
+> A collection of lints to catch common mistakes and improve your Rust code.
+> More information: <https://github.com/rust-lang/rust-clippy>.
+
+- Run checks over the code in the current directory:
+
+`cargo clippy`
+
+- Require that `Cargo.lock` is up to date:
+
+`cargo clippy --locked`
+
+- Run checks on all packages in the workspace:
+
+`cargo clippy --workspace`
+
+- Run checks for a package:
+
+`cargo clippy --package {{package}}`
+
+- Treat warnings as errors:
+
+`RUSTFLAGS="-Dwarnings" cargo clippy -- -D warnings`
+
+- Run checks and ignore warnings:
+
+`cargo clippy -- -A warnings`
+
+- Apply Clippy suggestion automatically (experimental and only supported on the nightly channel):
+
+`cargo clippy --fix -Z unstable-options`