Clean up

Author: lupyuen

customer_app/sdk_app_rust/README.md

@@ -14,7 +14,7 @@ Run this script to build, flash and run the BL602 Rust firmware...
 
 - [`run.sh`: Build, flash and run BL602 Rust firmware](run.sh)
 
-This script links the compiled Rust code into the BL602 firmwae by overwriting the compiled `rust_app` Stub Library...
+This script links the compiled Rust code into the BL602 firmware by overwriting the compiled `rust_app` Stub Library...
 
 - [`rust-app`: BL602 Stub Library for Rust Application](../../components/3rdparty/rust-app)