Update logging.md (fixed typo)

Author: Tomer-Eliahu

src/logging.md

@@ -133,7 +133,7 @@ optimizing the program. Let's check that.
 
 > **PROTIP** You can set `target.thumbv7m-none-eabi.runner` to the long QEMU
 > command from before (`qemu-system-arm -cpu (..) -kernel`) in the Cargo
-> configuration file (`.cargo/conifg.toml`) to have `cargo run` use that *runner* to
+> configuration file (`.cargo/config.toml`) to have `cargo run` use that *runner* to
 > execute the output binary.
 
 ``` console