Fix markdown syntax in README

README.md

@@ -5,12 +5,12 @@ An example of rendering with `wgpu` directly to a view controlled by `objc2`.
 This uses AppKit when targetting macOS, and UIKit otherwise.
 
 To run this with Mac Catalyst, you will need to bundle your application. This can be done with `cargo bundle` as follows:
-```
+```sh
 cargo +nightly build -Zbuild-std --target=aarch64-apple-ios-macabi
 CARGO_BUNDLE_SKIP_BUILD=1 cargo bundle --target=aarch64-apple-ios-macabi --format=ios
 ./target/aarch64-apple-ios-macabi/debug/bundle/ios/wgpu-objc2-example.app/wgpu-objc2-example
 ```
 
 ## Configurations
 
-See [`Cargo.toml`][./Cargo.toml] for the list of features that change the mode of execution.
+See [`Cargo.toml`](./Cargo.toml) for the list of features that change the mode of execution.