chore: Update CONTRIBUTING.md

Signed-off-by: cryo <[email protected]>

Author: cryo-zd

CONTRIBUTING.md

@@ -23,7 +23,7 @@ Before you begin, ensure you have the following installed:
 - **Go** 1.24.1 or later
 - **Hugging Face CLI** (`pip install huggingface_hub`)
 - **Make** (for build automation)
-- **Python** 3.8+ (Optiona: for training and testing)
+- **Python** 3.8+ (Optional: for training and testing)
 
 ### Initial Setup