Contributing: move Clippy up and to the bottom

Clippy is closer to building, and building the patches is the bare
minimum, thus it makes sense to be higher than `rustfmt`.

`checkpatch.pl` is important, but fairly well-known, so move it down so
that other points are more prominent, especially the `CLIPPY=1` one now
becomes the first one.

Signed-off-by: Miguel Ojeda <[email protected]>

Author: ojeda

src/Contributing.md

@@ -100,12 +100,10 @@ For new abstractions and modules, and especially for those that require new kern
 
 The following items apply to every patch in a series. That is, in general, each commit should be clean, not just the end state.
 
-  - Please run your patch through the `scripts/checkpatch.pl` script. In particular, the `--codespell` option is useful to check patches for typos.
+  - Please keep the code Clippy-clean by compiling with `CLIPPY=1`.
 
   - Please format the code by running the `rustfmt` target. Please see the [style guidelines](https://docs.kernel.org/rust/coding-guidelines.html#style-formatting) as well.
 
-  - Please keep the code Clippy-clean by compiling with `CLIPPY=1`.
-
   - When submitting changes to Rust code documentation, please render them using the `rustdoc` target and ensure the result looks as expected. The Rust code documentation gets rendered at <https://rust.docs.kernel.org>.
 
   - When submitting changes to tests, including `#[test]`s, Kselftests and examples inside Rust code documentation (i.e. "doctests", which are transformed into KUnit tests), please [test them](https://docs.kernel.org/rust/testing.html).
@@ -114,6 +112,8 @@ The following items apply to every patch in a series. That is, in general, each
 
   - Ideally, please check your changes with both the latest stable Rust compiler as well as the minimum supported version (`scripts/min-tool-version.sh rustc`), including Clippy.
 
+  - Please run your patch through the `scripts/checkpatch.pl` script. In particular, the `--codespell` option is useful to check patches for typos.
+
 ### Key cycle dates
 
   - Patches can be sent anytime.