Update CONTRIBUTING.md

CONTRIBUTING.md

@@ -57,7 +57,7 @@ cargo fmt
 ```
 
 ### Clippy
-If you don't have `clippy` installed already. Add it through `rustup`:
+If you don't have `clippy` installed already (which is very unlikely). Add it through `rustup`:
 ```bash
 rustup component add clippy
 ```
@@ -72,4 +72,4 @@ cargo clippy --all-features --all-targets -- -W clippy::all
 We recommend [RustRover](https://www.jetbrains.com/rust/) for contributions to this project. It comes with first-party support for both `rustfmt` and `clippy`. To enable them:
 
 - `rustfmt`: Open "Settings -> Rust -> Rustfmt". Enable "Use Rustfmt instead of the built-in formatter"
-- `clippy`: Open "Settings -> Rust -> External Linters". Set "External tool" to `Clippy`. Set "Additional arguments" to `--all-features --all-targets -- -W clippy::all`
+- `clippy`: Open "Settings -> Rust -> External Linters". Set "External tool" to `Clippy`. Set "Additional arguments" to `--all-features --all-targets -- -W clippy::all`